- 1648
- 1976-12-19
education: البحث العلمي
- 1495
- 1976-07-16
- 1383
- 1976-03-26
- 1374
- 1976-03-17
- 1329
- 1976-01-31
- 1306
- 1976-01-08
- 1304
- 1976-01-06
- 1296
- 1975-12-28
- 1255
- 1975-11-16
- 1122
- 1975-07-05
- 1102
- 1975-06-15
- 1078
- 1975-05-22
- 1072
- 1975-05-16
- 1019
- 1975-03-24
- 980
- 1975-02-13
- 907
- 1974-11-29
- 846
- 1974-09-27
- 754
- 1974-06-27
- 365
- 1973-04-30
- 364
- 1973-04-29