Al Ammaj، B. H.، و Forbes، I. (1993). Administration in Traditional Society: The Case of Recruitment and Selection in Public Sector Employment in Saudi Arabia (رسالة دكتوراه غير منشورة). University of Southampton، ساوثامبتون. مسترجع من http://search.mandumah.com/Record/601957
Al Ammaj، Bader H.، و Ian Forbes. "Administration in Traditional Society: The Case of Recruitment and Selection in Public Sector Employment in Saudi Arabia" رسالة دكتوراه. University of Southampton، ساوثامبتون، 1993. مسترجع من http://search.mandumah.com/Record/601957