Sobhi، I. S. A. I. (1981). PRODUCTION AND DISPOSITION OF COTTON IN EGYPT WITH A POLICY EMPHASIS ON COTTONSEED OIL. مجلة مصر المعاصرة، مج72, ع384 ، 5 - 11. مسترجع من http://search.mandumah.com/Record/663721
Sobhi، Ibrahim S. A. I. "PRODUCTION AND DISPOSITION OF COTTON IN EGYPT WITH A POLICY EMPHASIS ON COTTONSEED OIL." مجلة مصر المعاصرة مج72, ع384 (1981): 5 - 11. مسترجع من http://search.mandumah.com/Record/663721