- 4488
- 1984-11-11
education: البحث الأكاديمي
- 4485
- 1984-11-08
- 4433
- 1984-09-16
- 4240
- 1984-03-04
- 4196
- 1984-01-19
- 4147
- 1983-11-29
- 3977
- 1983-06-09
- 3968
- 1983-05-31
- 3855
- 1983-02-05
- 3806
- 1982-12-16
- 3581
- 1982-05-02
- 3521
- 1982-03-02
- 3465
- 1982-01-04
- 3339
- 1981-08-28
- 3149
- 1981-02-17
- 3140
- 1981-02-08
- 3063
- 1980-11-22
- 2927
- 1980-07-08
- 2846
- 1980-04-18
- 2809
- 1980-03-12