- 4065
- 1983-09-06
education: البحوث العلمية
- 3839
- 1983-01-20
- 3798
- 1982-12-08
- 3782
- 1982-11-22
- 3582
- 1982-05-03
- 3551
- 1982-04-01
- 3183
- 1981-03-24
- 2986
- 1980-09-06
- 2872
- 1980-05-14
- 2808
- 1980-03-11
- 2759
- 1980-01-21
- 2717
- 1979-12-09
- 2662
- 1979-10-13
- 2355
- 1978-12-09
- 1960
- 1977-11-03
- 1388
- 1976-03-31
- 894
- 1974-11-16
- 270
- 1973-01-07
- 269
- 1973-01-05
- 185
- 1972-09-24