| 研究報告| 1. | Central Statistical Board, GDR(1987)。Statistical Pocket Book of the German Democratic Republic。   | 圖書| 1. | The Economist Intelligence Unit(1988)。Country Report: East Germany。 | | 2. | United Nations(1987)。Manual on trading with the socialist countries of Eastern Europe。New York。 | | 3. | Dresdner Bank A. G.(1987)。ABECOR Country Report: German Democratic Republic。 | | 4. | The Economist Intelligence Unit(1987)。Country Profile, 1987-88: East Germany。 | |