- 5555
- 1987-10-30
education: البحوث العلمية
- 5296
- 1987-02-08
- 5293
- 1987-02-05
- 5145
- 1986-09-08
- 5141
- 1986-09-03
- 5117
- 1986-08-08
- 5107
- 1986-07-29
- 5035
- 1986-05-17
- 4843
- 1985-11-05
- 4841
- 1985-11-03
- 4783
- 1985-09-05
- 4751
- 1985-08-03
- 4750
- 1985-08-02
- 4686
- 1985-05-29
- 4602
- 1985-03-06
- 4572
- 1985-02-04
- 4564
- 1985-01-27
- 4302
- 1984-05-06
- 4228
- 1984-02-20
- 4190
- 1984-01-13