- 2226
- 1978-07-31
education: الجيولوجيا
- 2191
- 1978-06-26
- 2061
- 1978-02-13
- 1852
- 1977-07-16
- 1851
- 1977-07-14
- 1800
- 1977-05-24
- 1705
- 1977-02-16
- 1702
- 1977-02-13
- 1610
- 1976-11-09
- 1242
- 1975-11-03
- 1118
- 1975-07-01
- 741
- 1974-06-14
- 599
- 1974-01-23
- 573
- 1973-12-26
- 509
- 1973-10-14
- 507
- 1973-10-12
- 279
- 1973-01-19
- 203
- 1972-10-15