Al Shaya، A. A. M.، و Wheatley، A. (2002). A Study of the Use of Information Sources, with Special Emphasis on Cd-Roms and the Internet, by Saudi Physicians in Major Government Hospitals in Riyadh, Saudi Arabia (رسالة دكتوراه غير منشورة). University of Wales، كارديف. مسترجع من http://search.mandumah.com/Record/603349
Al Shaya، Abd Allah M.، و Alan Wheatley. "A Study of the Use of Information Sources, With Special Emphasis On Cd-Roms and the Internet, By Saudi Physicians in Major Government Hospitals in Riyadh, Saudi Arabia" رسالة دكتوراه. University of Wales، كارديف، 2002. مسترجع من http://search.mandumah.com/Record/603349