Fouzan، E. A. A.، و Nelson، R. E. (1980). THE INVOLVEMENT OF PARENTS OF EDUCABLE MENTALLY RETARDED IN THEIR CHILDREN'S EDUCATIONAL PROGRAMS IN SAUDI ARABIA (رسالة دكتوراه غير منشورة). San Diego State University، سان دييغو. مسترجع من http://search.mandumah.com/Record/620077
Fouzan، Ebrahim Abd Alaziz، و Robert E. Nelson. "THE INVOLVEMENT OF PARENTS OF EDUCABLE MENTALLY RETARDED IN THEIR CHILDREN'S EDUCATIONAL PROGRAMS IN SAUDI ARABIA" رسالة دكتوراه. San Diego State University، سان دييغو، 1980. مسترجع من http://search.mandumah.com/Record/620077