Al Eissa، I. M. (1989). THE POLITICAL ECONOMY OF SAUDI ARABIA: INVESTMENT IN HUMAN CAPITAL AND THE ECONOMICS OF HIGHER EDUCATION (رسالة دكتوراه غير منشورة). Denver University، دنفر. مسترجع من http://search.mandumah.com/Record/613640
Al Eissa، Ibrahim M. "THE POLITICAL ECONOMY OF SAUDI ARABIA: INVESTMENT IN HUMAN CAPITAL AND THE ECONOMICS OF HIGHER EDUCATION" رسالة دكتوراه. Denver University، دنفر، 1989. مسترجع من http://search.mandumah.com/Record/613640