Al Lail، M. J. J.، و Mosley، J. C. (1988). AN INVESTIGATION OF SELF-CONCEPT AND LEVEL OF ASPIRATION AMONG SAUDI MALE AND FEMALE COLLEGE STUDENTS (رسالة دكتوراه غير منشورة). University of Pittsburgh، بيتسبرغ. مسترجع من http://search.mandumah.com/Record/611907
Al Lail، Mohammed J. Jamal، و John C. Mosley. "AN INVESTIGATION OF SELF-CONCEPT AND LEVEL OF ASPIRATION AMONG SAUDI MALE AND FEMALE COLLEGE STUDENTS" رسالة دكتوراه. University of Pittsburgh، بيتسبرغ، 1988. مسترجع من http://search.mandumah.com/Record/611907