- 806
- 1974-08-18
science: الكيمياء
- 746
- 1974-06-19
- 707
- 1974-05-11
- 699
- 1974-05-03
- 675
- 1974-04-09
- 574
- 1973-12-27
- 512
- 1973-10-17
- 510
- 1973-10-15
- 497
- 1973-10-01
- 452
- 1973-08-09
- 431
- 1973-07-16
- 368
- 1973-05-03
- 347
- 1973-04-09
- 325
- 1973-03-14
- 254
- 1972-12-18
- 245
- 1972-12-07
- 196
- 1972-10-06
- 185
- 1972-09-24
- 130
- 1972-07-21
- 87
- 1972-06-01