- 1213
- 1975-10-04
science: البحث العلمي
- 1196
- 1975-09-17
- 1167
- 1975-08-19
- 1156
- 1975-08-08
- 1116
- 1975-06-29
- 1094
- 1975-06-07
- 1052
- 1975-04-26
- 980
- 1975-02-13
- 979
- 1975-02-12
- 970
- 1975-02-03
- 923
- 1974-12-15
- 901
- 1974-11-23
- 876
- 1974-10-29
- 869
- 1974-10-22
- 801
- 1974-08-13
- 750
- 1974-06-21
- 742
- 1974-06-15
- 681
- 1974-04-15
- 675
- 1974-04-09
- 670
- 1974-04-04