Al Ahaydib، M. E. A.، و Ridgway، R. (1986). TEACHING ENGLISH AS A FOREIGN LANGUAGE IN THE INTERMEDIATE AND SECONDARY SCHOOLS OF SAUDI ARABIA: DIAGNOSTIC STUDY (رسالة دكتوراه غير منشورة). University of Kansas، لورانس. مسترجع من http://search.mandumah.com/Record/619647
Al Ahaydib، Mohammed E. A.، و Robert Ridgway. "TEACHING ENGLISH AS A FOREIGN LANGUAGE IN THE INTERMEDIATE AND SECONDARY SCHOOLS OF SAUDI ARABIA: DIAGNOSTIC STUDY" رسالة دكتوراه. University of Kansas، لورانس، 1986. مسترجع من http://search.mandumah.com/Record/619647