Zaid، M. A.، و Baca، L. M. (1993). COMPREHENSIVE ANALYSIS OF THE CURRENT SYSTEM OF TEACHING ENGLISH AS A FOREIGN LANGUAGE IN THE SAUDI ARABIAN lNTERMEDIATE SCHOOLS (رسالة دكتوراه غير منشورة). University of Colorado، بولدر. مسترجع من http://search.mandumah.com/Record/617935
Zaid، Mohammed A.، و Leonard M. Baca. "COMPREHENSIVE ANALYSIS OF THE CURRENT SYSTEM OF TEACHING ENGLISH AS A FOREIGN LANGUAGE IN THE SAUDI ARABIAN LNTERMEDIATE SCHOOLS" رسالة دكتوراه. University of Colorado، بولدر، 1993. مسترجع من http://search.mandumah.com/Record/617935