Al Thuwaini، S. I. (1986). ATTITUDES OF SUPERVISORS AND TEACHERS TOWARD THE SOCIAL STUDIES CURRICULUM IN SAUDI ARABIAN ELEMENTARY SCHOOLS (رسالة دكتوراه غير منشورة). Denver University، دنفر. مسترجع من http://search.mandumah.com/Record/613590
Al Thuwaini، Saud Ibrahim. "ATTITUDES OF SUPERVISORS AND TEACHERS TOWARD THE SOCIAL STUDIES CURRICULUM IN SAUDI ARABIAN ELEMENTARY SCHOOLS" رسالة دكتوراه. Denver University، دنفر، 1986. مسترجع من http://search.mandumah.com/Record/613590