Al Arfaj، N. I.، و Stalker، J. C. (1996). FACTORS CAUSING READING DIFFICULTIES FOR SAUDI BEGINNING STUDENTS OF ENGLISH AS A FOREIGN LANGUAGE (رسالة دكتوراه غير منشورة). Clarkson University، ميشيغان. مسترجع من http://search.mandumah.com/Record/615862
Al Arfaj، Naji Ibrahim، و James C. Stalker. "FACTORS CAUSING READING DIFFICULTIES FOR SAUDI BEGINNING STUDENTS OF ENGLISH AS A FOREIGN LANGUAGE" رسالة دكتوراه. Clarkson University، ميشيغان، 1996. مسترجع من http://search.mandumah.com/Record/615862