- 4100
- 1983-10-13
education: أبحاث علمية
- 4088
- 1983-09-30
- 4082
- 1983-09-24
- 3970
- 1983-06-02
- 3713
- 1982-09-13
- 3480
- 1982-01-19
- 3362
- 1981-09-20
- 3360
- 1981-09-18
- 3281
- 1981-06-30
- 3248
- 1981-05-28
- 3150
- 1981-02-18
- 2794
- 1980-02-26
- 2756
- 1980-01-18
- 2724
- 1979-12-16
- 2025
- 1978-01-08