Al Zamil، A. A.، و Whitaker، T. (2004). THE IMPACT OF THE SEPTEMBER 11,2001 TRAGEDY ON SAUDi HIGH SCHOOL STUDENTS' ATTITUDES TOWARD STUDYING IN THE UNITED STATES OF AMERICA (رسالة دكتوراه غير منشورة). Indiana State University، تير هوت. مسترجع من http://search.mandumah.com/Record/613001
Al Zamil، Abd Allah، و Todd Whitaker. "THE IMPACT OF THE SEPTEMBER 11,2001 TRAGEDY ON SAUDi HIGH SCHOOL STUDENTS' ATTITUDES TOWARD STUDYING IN THE UNITED STATES OF AMERICA" رسالة دكتوراه. Indiana State University، تير هوت، 2004. مسترجع من http://search.mandumah.com/Record/613001