Al Gorashi، A. K.، و Gradman، H. L. (1988). The English Communication Needs of Military Cadets in Saudi Arabia as Perceived by Junior Officers in the Saudi Army and Air Defense (رسالة دكتوراه غير منشورة). Indiana University، إنديانا. مسترجع من http://search.mandumah.com/Record/610779
Al Gorashi، Ahmed Kheder، و Harry L. Gradman. "The English Communication Needs of Military Cadets in Saudi Arabia As Perceived By Junior Officers in the Saudi Army and Air Defense" رسالة دكتوراه. Indiana University، إنديانا، 1988. مسترجع من http://search.mandumah.com/Record/610779