Al Arfaj، N.، و Williams. (2002). The Incidence of some Common Disorders Amongst Denture-Wearing Populations in the United Kingdom and the Kingdom of Saudi Arabia: A Comparative Study (رسالة ماجستير غير منشورة). University of Bristol، بريستول. مسترجع من http://search.mandumah.com/Record/603365
Al Arfaj، Nasser، و Williams. "The Incidence of Some Common Disorders Amongst Denture-Wearing Populations in the United Kingdom and the Kingdom of Saudi Arabia: A Comparative Study" رسالة ماجستير. University of Bristol، بريستول، 2002. مسترجع من http://search.mandumah.com/Record/603365