- 2359
- 1978-12-13
science: العلوم الطبيعية
- 2158
- 1978-05-21
- 1949
- 1977-10-23
- 1899
- 1977-09-01
- 1835
- 1977-06-28
- 1818
- 1977-06-11
- 1781
- 1977-05-05
- 1779
- 1977-05-03
- 1577
- 1976-10-07
- 1556
- 1976-09-15
- 1451
- 1976-06-02
- 1416
- 1976-04-28
- 1365
- 1976-03-08
- 1299
- 1975-12-31
- 1018
- 1975-03-23
- 255
- 1972-12-19
- 188
- 1972-09-27
- 158
- 1972-08-23
- 110
- 1972-06-28