- 5913
- 1988-10-28
education: التعاون العلمي
- 5898
- 1988-10-13
- 5862
- 1988-09-07
- 5860
- 1988-09-05
- 5711
- 1988-04-06
- 5657
- 1988-02-11
- 5606
- 1987-12-21
- 5502
- 1987-09-07
- 5324
- 1987-03-09
- 4694
- 1985-06-06
- 4313
- 1984-05-17
- 3896
- 1983-03-19
- 3691
- 1982-08-22
- 2505
- 1979-05-08
- 685
- 1974-04-19