- 6452
- 1990-04-24
education: بحث علمي
- 6265
- 1989-10-18
- 6133
- 1989-06-06
- 5948
- 1988-12-02
- 5576
- 1987-11-21
- 5569
- 1987-11-14
- 522١
- 1986-11-18
- 5571
- 1986-11-16
- 5062
- 1986-06-14
- 5044
- 1986-05-26
- 5019
- 1986-05-01
- 5016
- 1986-04-28
- 4904
- 1986-01-06
- 4837
- 1985-10-30
- 4757
- 1985-08-09
- 4755
- 1985-08-07
- 4751
- 1985-08-03
- 4672
- 1985-05-15
- 4667
- 1985-05-10
- 4585
- 1985-02-17