Alam، M. A.، و Rabineau، M. (1986). THE EFFECTS OF THREE EXPERIMENTAL INTERVENTIONS ON THE SPOKEN ENGLISH PROFICIENCY OF EIGHTH GRADE SAUDI ARABIAN STUDENTS (رسالة دكتوراه غير منشورة). Denver University، دنفر. مسترجع من http://search.mandumah.com/Record/613540
Alam، Mohammed Assad، و Mona Rabineau. "THE EFFECTS OF THREE EXPERIMENTAL INTERVENTIONS ON THE SPOKEN ENGLISH PROFICIENCY OF EIGHTH GRADE SAUDI ARABIAN STUDENTS" رسالة دكتوراه. Denver University، دنفر، 1986. مسترجع من http://search.mandumah.com/Record/613540