Surur، R. S.، و Hughes، G. H. (1981). SURVEY OF STUDENTS', TEACHERS', AND ADMINISTRATORS' ATTITUDES TOWARD ENGLISH AS A FOREIGN LANGUAGE IN THE SAUDI ARABIAN PUBLIC SCHOOLS (رسالة دكتوراه غير منشورة). University of Kansas، لورانس. مسترجع من http://search.mandumah.com/Record/619278
Surur، Radhi Saad، و George H. Hughes. "SURVEY OF STUDENTS', TEACHERS', AND ADMINISTRATORS' ATTITUDES TOWARD ENGLISH AS A FOREIGN LANGUAGE IN THE SAUDI ARABIAN PUBLIC SCHOOLS" رسالة دكتوراه. University of Kansas، لورانس، 1981. مسترجع من http://search.mandumah.com/Record/619278