Ezzat، F. A. A. (1980). MEASUREMENT OF RESOURCE REQUIREMENTS AND ASSESSMENT OF FUTURE GROWTH LIMITS IN THE SUDAN. مجلة مصر المعاصرة، مج71, ع380 ، 5 - 35. مسترجع من http://search.mandumah.com/Record/663685
Ezzat، Farag Abd Alaziz. "MEASUREMENT OF RESOURCE REQUIREMENTS AND ASSESSMENT OF FUTURE GROWTH LIMITS IN THE SUDAN." مجلة مصر المعاصرة مج71, ع380 (1980): 5 - 35. مسترجع من http://search.mandumah.com/Record/663685