Adams, D.A., Nelson, R.R. and Todd, P.A. (1992). Perceived usefulness, ease of use, and
usage of information technology: a replication. MIS Quarterly,16(2), 227-247.
Adam, N. R., Atluri, V. & Adiwijaya, I. (2000). SI in digital libraries. Communications of
the ACM, 43, 64–72.
Ahituv, N. and Neuman, S. (1986). Principles of information system for management,
Dubuque, Iowa: Wm. C. Brown Publishers.
Ajzen, I. and Fishbein, M. (1980). Understanding Attitudes and Predicting Social
Behavior, Prentice-Hall. Englewood Cliffs, NJ.
Amoako-Gyampah, K., & Salam, A. F. (2004). An extension of the technology acceptance
model in an ERP implementation environment. Information & Management,41 (6),
731-745.
Anderson, J.C. & Gerbing, D.W. (1988).Structural Equation Modeling in Practice: A
Review and Recommended Two-step Approach. Psychological Bulletin, 103,411-423.
Anhang, A. and Coffman, S. (2002).The great reference debate. American Libraries, 33
(3), 50-54.
Archer, N. P., Head, M. M. & Yuan, Y. (1996). Patterns in information search for decision
making: the effects of information abstraction. International Journal of Human
Computer- Studies, 45, 599-616.
Arnold, J., & Kaske, N. (2005). Evaluating the quality of a chat service. portal: Libraries
and the Academy, 5 (2), 177−193.
Bagozzi, R. P. and Y. Y. (1988). On the evaluation for structural equation models.Journal
of the Academy of Marketing science,16, 74-94.
Bailey, J.E., Pearson, S.W., (1983). Development of a tool for measuring and analyzing
computer user satisfaction. Management Science, 29(6), 519–529.
Baro, E. E. and Fyneman, B. (2009). Information literacy among undergraduate students in
Niger Delta University. The Electronic Library, 27 (4), 659-675.
Borgman, C. L. (1999). What are digital libraries? Competing visions.Information
Processing and Management, 35, 227–243.
Borgman, C. L., Leazer, G. H., Gilliland-Swetland, A. J., & Gazan, R. (2001). Iterative
design and evaluation of a geographic digital library for university students: A case study
of the Alexandria Digital Earth Prototype (ADEPT)”. Proceedings of the 5th European
Conference on Research and Advanced Technology for Digital Libraries, 390−401.
London: Springer-Verlag.
Brady, M.F.and Cronin, J.J., Jr. (2001). Some new thoughts on conceptualizing perceived
service quality: A hierarchical approach. Journal of Marketing, 65(3), 34–49.
Bromberg, P. (2003). Managing a statewide virtual reference service: How Q and A NJ
works. Computers in Libraries, 23(4), 26−31.
Brown, T.J., Churchilll, G.A., and Peter, J.P. (1993). Improving the measurement of
service quality. Journal of Retailing, 69(Spring), 127–139.
Buckland, A. and Godfrey, K. (2010). Save the Time of the Avatar: Canadian academic
Libraries Using Chat Reference in Multi-User virtual environments. The Reference
Librarian, 51 (1), 12-30.
Bunge, C. A. (1999).Reference services. Reference Librarian, 31(66), 185-199.
Cahill, K. and Chalut, R. (2009). Optimal results: What Libraries need to know about
Google and Search engine Optimization. The Reference Librarian, 50 (3), 234-247.
Cameran, M; Moizerb, P and Pettinicchioa, A. (2010). Customer satisfaction, corporate
image, and service quality in professional services. The Service Industries Journal 30(3),
421–435.
Casalo´, L.V., Flavia´n, C. and Guinalı´u, M. (2007). The role of security, privacy,usability
and reputation in the development of online banking. Online Information Review, 31(5),
583-603.
Chang, C.C.; Lin, C.Y.; Chen Y.C. and Chin C.C. (2009). Predicting information-seeking
intention in academic digital libraries. The Electronic Library, 27 (3), 448-460.
Chen, S.C., Chen, H.H. and Chen, M.F. (2009). Determinants of satisfaction and
continuance intention towards self-service technologies. Industrial Management & Data
Systems, 109(9), 1248-1263.
Chen, Y.M. (2009). Determinants of industry performance: region vs. country effects in
knowledge-intensive service industries.The Service Industries Journal,29, (3), 297–316.
Cherry, J.M., Duff, W.M. (2002). Studying digital library users over time: A follow-up
survey of Early Canadiana online. Information Research, 7 (2) Retrieved from
http://informationr.net/ir/7-2/ paper123.html

Chowdhury, G. G., & Chowdhury, S. (2003). Introduction to digital libraries. London: Facet Publish.
Chu, H.C.; Hwang, G.J.; Huang S.X. and Wu, T.T. (2008). A knowledge engineering
approach to developing e-libraries for mobile learning. The Electronic ibrary , 26
(3),303-317
Cotta-Schonberg, M., & Line, M.B. (1994). Evaluation of academic libraries: With special
reference to the Copenhagen Business School Library. Journal of Librarianship and
Information Science, 26(2), 55–69.
Cronin, J.J., Jr. and Taylor, S.A. (1992). Measuring service quality: A re-examination and
extension. Journal of Marketing, 56(3), 55–68.
Davis, F.D. (1989). Perceived usefulness, perceived ease of use, and user acceptance of
information technology. MIS Quarterly, 13, 319-40.
Davis, F. D., Bagozzi, R. P., & Warshaw, P. R. (1989). User acceptance of computer
technology: a comparison of two theoretical models. Management Science, 35, 982–1002.
den Hertog, P. (2000) . Knowledge-intensive business services as co-producers of
innovation. International Journal of Innovation Management, 4(4), 491–528.
Desai, C. M. (2003). Instant messaging reference: how does it compare.The Electronic
Library, 21(1), 21-30.
Desai, C.M. and Graves, S.J. (2008). Cyberspace or Face-to-Face: Changing Reference
Mediums and the Teachable Moment. Reference and User Services Quarterly, 47
(3), 242-255.
Estabrook, L and Rainie, L. (2007). Information searches that solve problems: How people
use the Internet, libraries, and government agencies when they need help.
PEWINTERNET & American Life Project, pp. 1-43.
Eng, T.Y., & Kim, E.J. (2006). An examination of the antecedents of e-customer loyalty in
a Confucian culture: The case of South Korea. The Service Industries Journal,
26(4),437–458.
Eskildsen, J., Kristensen, K., Juhl, H.T., & Ostergaard, P. (2004). The drivers of customer
satisfaction and loyalty. The case of Denmark 2000–2002. Total Quality Management,
15(5–6), 859–868.
Fane, C. and McMillan, D. (2003). Online in real-time? Deciding whether to offer a
real-time virtual reference service. The Electronic Library, 21(3), 240-246.
Fishbein, M. and Ajzen, I. (1975). Belief, Attitude, Intention and Behavior: An
Introduction to Theory and Research. Addison-Wesley, Boston, MA.
Gefen, D., Karahanna, E., & Straub, D. W. (2003). Trust and TAM in online shopping: An
integrated model. MIS Quarterly, 27 (1), 51-90.
Gefen, D., Straub, D.W. and Boudreau, M.C. (2000). Structural equation modeling and regression: guidelines for research practice. Communications of the Association for Information Systems, 4 (7), 1-77.
Goh, T.T. and Liew, C.L. (2009). SMS-based library catalogue system: a preliminary
investigation of user acceptance. The Electronic Library, 27(3), 394-408.
Gurney, L. J., and Wilkes, J. (2008). Creating a library presence in online units. Australian
Academic & Research Libraries, 39, 26–37.
Hsiao, C.H. and Yang,C. (2010). The intellectual development of the technology
acceptance model: A co-citation analysis”, accepted in July 2010, to appear in
International Journal of Information Management"
Hair, J. F., R. E. Anderson, R. L. Tatham, and W. C. Black (1998). Multivariate Data
Analysis, 5th ed., New Jersey: Prentice-Hall.
Harless, David W., and Frank R. Allen. (1999). Using the contingent valuation method to
measure patron benefits of reference desk service in an academic library. College &
Research Libraries, 60, 56–69.
Hatcher, L. (1994). Step-by-step Approach to using the SAS System for Factor Analysis and Structural Equation Modeling. SAS Institute Inc Cary, NC.
Heinrichs, J.H. ; Lim, K.S. and Spangenberg, M.A. (2007). Determining Factors of
Academic Library Web Site Usage. Journal of the American society for Information
science and technology, 58 (14),2325-2334.
Herman, S. (2007). SMS reference: keeping up with your clients. The Electronic
Library, 25 (4), 401-408.
Hertog, P. (2002). Co-producers of innovation: On the role of knowledge-intensive
business services in innovation. In J. Gadrey & F. Gallouj (Eds.), Productivity, innovation
and knowledge in services (247–255). Cheltenham, UK: Edward Elgar.
Hill, L. L., Carver, L., Larsgaard, M., Dolin, R., Smith, T. R., Frew, J. & Rae, M. (2000).
Alexandria digital library: user evaluation studies and system design. Journal of the American Society for Information Science, 51, 246–259.
Holbrook, M.B. (2000). The millennial consumer in the texts of our times: experience and
Entertainment. Journal of Macromarketing, 20(2), 178-192.
Horowitz, L. R., Flanagan, P., & Helman, D. (2005).The viability of live online reference:
An assessment. portal: Libraries and the Academy,5,239−258.
Hulshof, R. (1999).Providing services to virtual patrons. Information Outlook,3(1), 20–23.
Jankowska, M.A. (2004). Identifying university professors’ information needs in the
challenging environment of information and communication technologies. Journal of
Academic Librarianship, 30(1), 51-66.
Johnson, C. M. (2004). Online chat reference. Reference and User Services Quarterly,
44(1), 46−56.
Kajewski, M.A. (2007). Emerging technologies changing our service delivery models. The
Electronic Library, 25(4), 420-429.
Karahanna, K. and Straub, D.W. (1999). The psychological origins of perceived usefulness
and ease-of-use. Information & Management, 35(4),237-250.
Kern, M. K. (2003) .What are they asking? An analysis of questions asked at in-person and
virtual service points”, ALA Annual Conference, 9th Annual Reference Research Forum,
Toronto, Ontario, Canada
Lai, T.L. (2004). Service quality and perceived value’s impact on satisfaction, intention
and usage of short message service (SMS). Information Systems Frontiers, 6(4), 353-368.
Lankes, R. D., Gross, M., & McClure, C. R. (2003). Cost, statistics, measures, and
standards for digital eference services: A preliminary view. Library Trends, 51, 401−413.
Lederer, A.L., Maupin, D.J., Sena, M.P. and Zhuang, Y. (2000).The technology
acceptance model and the world wide web. Decision Support Systems, 29(3), 269-282.
Lee, E.J. and Overby, J.W. (2004). Creating value for online shoppers: implications for
satisfaction and loyalty. Journal of Consumer Satisfaction, Dissatisfaction and
Complaining Behavior, 17, 54-67.
Liao, C.H., Tsou, C.W. and Huang, M.F. (2007). Factors influencing the usage of 3G
mobile services in Taiwan. The Electronic Library, 31(6), 759-774.
Lin, C.T. (2010). Examining e-travel sites: an empirical study in Taiwan. The Electronic
Library, 34(2), 205-228.
Lin, H.T.; Lin, C. F. and Yuan, S.M. (2009). Using RFID guiding systems to enhance user
experience. The Electronic Library, 27(2), 319-330.
Lin, J. C., & Lu, H. (2000) Towards an understanding of the behavioral intention to use a
Web site. International Journal of Information Management, 20,197–208.
Lin, P.C.and Chou, Y.H. (2009). Perceived usefulness, ease of use, and usage of citation
database interfaces: a replication. The Electronic Library, 27(1), 31-42.
Lipow, A.G. and Coffman, S. (2001). Establishing a Virtual reference Service: VRD
Training Manual, LSSI’s VRD (Virtual Reference Desk). Library Solutions Press
, Berkeley. CA.
Lipow, A. G. (2003). The virtual reference librarian's handbook”. New York:
Neal-Schuman.
Lippincott, Joan K. (2006). New library facilities: opportunities for collaboration.
Resource Sharing information Networks, 19 (1), 147-157.
Lu, Y.; Zhou, T. and Wang, B. (2009). Exploring Chinese users’acceptance of instant
messaging using the theory of planned behavior, the technology acceptance model, and the
flow theory. Computers in Human Behavior, 25, 29–39.
Luarn, P. and Lin, H.H. (2005). Towards an understanding of the behavioral intention to
use mobile banking. Computers in Human Behavior, 21(6), 873-891.
Lucas, H. C., and V. K. Spitler. (1999).Technology Use and Performance: A Field Study
of Broker Workstations. Decision Sciences, 30(2), 291–311.
Luo, L. (2007a); Reference evolution under the influence of new technologies. Technical
Report No. TR-2007-03, Chapel Hill, NC: University of North Carolina at Chapel Hill.
Luo, L. (2008). Toward sustaining professional development: Identifying essential
competencies for chat reference service. Library & Information Science Research,
30, 298–311.
Lynch, C. (1995). CNI white paper on networked information discovery and retrieval.
available at: www.cni.org/projects/nidr/
Marchionini, G., Plaisant, C. & Komlodi, A. (1998). Interfaces and tools for the Library of
Congress National Digital Library program. Information Processing and Management,34,
535–555.
Massey-Burzio, Virginia, (1998). From the Other Side of the Reference Desk: A Focus
Group Study. Journal of Academic Librarianship, 24(3),208-215.
Meadow, C. T., Wang, J .& Yuan, W. (1995). A study of user performance and attitudes
with information retrieval interfaces. Journal of the American Society for Information
Science,46,490–505.
Mercer, C.(1995). Navigating the economy of knowledge: a national survey of users and
non-users of state and public libraries. Libraries Working group of the Cultural Ministers
Council.
Miles, I. (2000). Services innovation: coming of age in the knowledge-based economy.
International Journal of Innovation Management,4(4),371–389.
Miles, I., Kastrinos, N., Flanagan, K., Bilberbeek, R., den Hertog, P., Huntik, W. (1995).
Knowledge-intensive business services: their role as users, carriers and sources of
innovation. Report to the EC DG XIII, Luxembourg: Sprint EIMS Programme.
Moon, J.W. and Kim, Y.G. (2001). Extending the TAM for a world-wide-web context.
Information & Management, 38(4), 217-230.
National Science Board (2006). Science and engineering indicators – 2006 (2),
NSB-06–2.Arlington, VA: National Science Foundation.
Nielsen, J.F. (2002). Internet technology and customer linking in Nordic banking.
InternationalJournal of Service Industry Management, 13(5), 475–495.
Nofsinger, Mary M. (1999). Training and Retraining Reference Professionals: Core
Competencies for the 21st Century. The Reference Librarian,64, 9-19.
OCLC (2005). Perceptions of libraries and information resources: a report to the OCLC
membership”, available at: www.oclc.org/reports/2005perceptions.htm
Oliver, R. (1999).Value as Excellence in the Consumption Excellence.Routledge, London.
Omekwa, O.C. (2007). Cataloguers in a global information network environment. The
Electronic Library, 26(2), 188-201.
O’Reilly, C. A. and J. Chatman (1986). Organizational Commitment and Psychological
Attachment: The Effects of Compliance, Identification, and Internalization on Prosocial
Behavior.Journal of Applied Psychology, 71, 492–499.
Ortega, B.H., Martinez, J.J. and Hoyos, M.J.M. (2006). Analysis of the moderating effect
of industry on online behaviour. Online Information Review, 30(6), 681-698.
Parandjuk J.C. (2010). Using information architecture to evaluate digital libraries. The
Reference Librarian,51(2) , 124–134.
Pomerantz, J., & Luo, L. (2006). Motivations and Uses: Evaluating Virtual Reference
Service from the Users' Perspective. Library & Information Science Research,28(3),
350-373.
Pomerantz, J. (2005). A conceptual framework and open research questions for chat-based
reference service. Journal of the American Society for Information Science and Technology, 56, 1288−1302.
Premkumar, G.; Ramamurthy, K. and Liu, J.N. (2008). Internet messaging: An
examination of the impact of attitudinal, normative, and control belief systems.
Information & Management, 45, 451–457.
Radford, M.L. and Kern, M.K, (2006). A multiple-case study investigation of the
discontinuation of nine chat reference services.Library & Information Science Research
28,521–547.
Ruppel, M. & Fagan, J.C. (2002). Instant messaging reference: users' evaluation of
library chat. Reference Services Review, 30(3), 183-197.
Ruth C.T. Morris (1994).Toward a user-centered information service. Journal of the
American society for information science,45 (1), 20–30.
Richardson, J. (2009). Good Models of Reference Service transactions: Applying
quantitative concepts to Generate Nine characteristic attributes of Soundness. The
Reference Librarian, 50(2 ),159-177.
Roh, T.H., Ahn, C.K., & Han, I. (2005). The priority factor model for customer
relationship management system success. Expert Systems with Applications, 28(4),
641–654.
Saracevic, T. (1970). The concept of ‘relevance’ in information science: a historical
review”, in Saracevic, T. (Ed.), Introduction to Information Science, Bowker, New York,
NY, 111-151.
Saracevic, T. & Kantor, P. (1997). Studying the value of library and information services.I.
Establishing a theoretical framework. Journal of the American Society for Information
Science,48(6), 527-542.

Saracevic, T., and Covi, L. (2000). Challenges for digital library evaluation. Proceedings
of the ASIS Annual Meeting, 37, 341–350.
Schamber, L., Eisenberg, M. and Nilan, M. (1990). A re-examination of relevance: toward
a dynamic, situational definition. Information Processing and Management. 26(6),
755-776.
Segerstad, Y. (2002). Instant messaging with WebWho. Int. J. Human-computer Studies,
56, 147–171.
Selim, H.M. (2003). An empirical investigation of student acceptance of course websites.
Computers & Education 40, 343–360.
Serenko, A. (2008). A model of user adoption of interface agents for e-mail notification.
Interacting with Computers, 20, 461-472.
Sharifabadi, S.R. (2006). How digital libraries can support e-learning. The Electronic
Library, 24(3), 389-401.
Shachaf, P. and Horow, S.M. (2008). Virtual reference service evaluation: Adherence to
RUSA behavioral guidelines and IFLA digital reference guidelines. Library &
Information Science Research, 30, 122-137.
Shih, H.P.(2004). Extended technology acceptance model of Internet utilization behavior.
Information & Management.41,719–729.
Shin, D.H. (2007). User acceptance of mobile Internet: Implication for convergence
Technologies. Information and Organization Journal,19,472-483.
Spink, A., Greisdorf, H. &Bateman, J. (1998). From highly relevant to not relevant:
examining different regions of relevance”. Information Processing and Management,
34, pp.599–621.
Srinivasan, A, (1985). Alternative measures of system effectiveness: associations and
Implications. MIS Quarterly, 9(3), 243–253.
Steiner, H.M. and Holley, R.P. (2009). The past, present, and possibilities of commons in
the academic library. The Reference Librarian, 50(4), 309-332.
Stock, M. (2010). The three R’s: Rapport, Relationship, and Reference. The Reference
Librarian, 51(1),45-52.
Taylor, S., & Todd, P. A. (1995).Understanding information technology usage: A test of
competing models. Information Systems Research, 6(2), 144–176.
Thong, Y. L., Hong, W. and Tam, K.Y. (2002). Understanding user acceptance of digital
libraries: what are the roles of interface characteristics, organizational context, and
individual differences? .Int. J. Human-Computer Studies,57, 215–242.
Tong, Y.K. (2009). A study of e-recruitment technology adoption in Malaysia. Industrial
Management & Data Systems, 109(2), 281-300.
Tsai, C.S. and Chen, M.Y. (2008). Using adaptive resonance theory and data-mining
techniques for materials recommendation based on the e-library environment. The
Electronic Library,26(3), 287-302.
Ueltschy, L.C., Laroche, M., Eggert, A., & Bindl, U. (2007). Service quality and
satisfaction: An international comparison of professional services perceptions. Journal of
Services Marketing, 21(6), 410–423.
Van House, N.A., Butler, M.H., Ogle, V., Schiff, L. (1996). User-centered iterative design
for digital libraries: The Cypress experience. D-Lib Magazine,
Retrieved from http://www.dlib.org/dlib/february96/02vanhouse.html

Venkatesh, V. (2000). Determinants of perceived ease of use: integrating control, intrinsic
motivation, and emotion into the technology acceptance model. Information Systems
Research,11(4), 342-365.
Venkatesh, V. and Davis, F.D. (2000). A theoretical extension of the technology
acceptance model: four longitudinal field studies. Management Science,46(2), 186–204.
Venkatesh, V., and F. Davis. (1996). A Model of the Antecedents of Perceived Ease of
Use: Development and Test. Decision Sciences,27(3),451–481.
Venkatesh, V., Morris, M.G., Davis, G.B. and Davis, F.D. (2003).User acceptance of
information technology: toward a unified view. MIS Quarterly, 27(3),425-478.
Viswanathan, M.(2005).Measurement Error and Research Design,1st Sage publication.
Waller, V. (2009). How do virtual visitors get to the library? The Electronic Library,
27(5), 815-830.
Wang, C., Hsu, Y., & Fang, W. (2004). Acceptance of technology with network
externalities: An empirical study of Internet instant messaging services. Journal of
Information Technology Theory and Application,6(4),15–28.
Watters, C. (1999). Information retrieval and the virtual document. Journal of the
American Society for Information Science, 50, 1028–1029.
Ward, D. (2004). Measuring the completeness of reference transactions in online chats. Reference and User Services Quarterly, 44 (1), 46−56.
Ward J. and Barbier, P (2010). Best Practices in chat reference used by Florida’s Ask a
Librarian virtual reference librarians. The Reference Librarian, 51(1), 53-68.
Weimer, K. (2010). Text Messaging the Reference Desk: Using upside wireless’
SMS-to-Email to extend reference service. The Reference Librarian, 51(2),108-123.
White, M.D. (2001). Digital reference services: Framework for analysis and evaluation.
Library & Information Science Research, 23, 211-231.
Williams, S (2010). New Tools for Online Information Literacy Instruction. The Reference
Librarian,51(2), 148-162
Wu, J.H. and Wang, Y.M. (2007) Measuring ERP success: the key-users’ viewpoint of the
ERP to produce a viable IS in the organization. Computers in Human Behavior, 23(3)
1582-1596.
Xie. H. (2006). Evaluation of digital libraries: Criteria and problems from users'
Perspectives. Library & Information Science Research, 28,433-452.
Yao, L. and Zhao, P. (2009). Digital libraries in China: progress and prospects. The
Electronic Library, 27(2),308-318.
Yang, S. (2009). Information Literacy Online Tutorials: an introduction to rationale and
technological tools in tutorial creation. The electronic Library, 27 (4), 684-693.
Zabed Ahmed, S.M.; McKnight, C. and Oppenheim, C. (2009). A review of research on
human-computer interfaces for online information retrieval systems. The Electronic
Library, 27(1), 96-116.
Zviran, M., Pliskin, N. and Levin, R. (2005). Measuring user satisfaction and perceived
usefulness in the ERP context. Journal of Computer Information Systems,45(3), 43-52.