Al Khouli، S. F. A.، و Howe، C. (1985). FORECASTING MANPOWER SKILLS BY OCCUPATION AND NATIONALITY IN A PETRODOLLAR-SURPLUS ECONOMY: THE CASE OF SAUDI ARABIA (رسالة دكتوراه غير منشورة). University of Colorado، بولدر. مسترجع من http://search.mandumah.com/Record/616854
Al Khouli، Saiyed Fathi Ahmed، و C. Howe. "FORECASTING MANPOWER SKILLS BY OCCUPATION AND NATIONALITY IN A PETRODOLLAR-SURPLUS ECONOMY: THE CASE OF SAUDI ARABIA" رسالة دكتوراه. University of Colorado، بولدر، 1985. مسترجع من http://search.mandumah.com/Record/616854