- 6552
- 1991-06-18
ministries: وزارة الطاقة الأمريكية
- 6398
- 1990-03-01
- 6271
- 1989-10-24
- 6107
- 1989-05-11
- 5817
- 1988-07-22
- 5698
- 1988-03-24
- 5613
- 1987-12-28
- 5606
- 1987-12-21
- 5587
- 1987-12-02
- 5530
- 1987-10-05
- 5506
- 1987-09-11
- 5493
- 1987-08-29
- 5479
- 1987-08-14
- 5398
- 1987-05-23
- 5339
- 1987-03-24
- 5323
- 1987-03-08
- 5312
- 1987-02-24
- 5293
- 1987-02-05
- 5224
- 1986-11-27
- 5212
- 1986-11-15