Al Obaid، A. A. A.، و Bointon، B. B. (1995). Food Availability and Fat Composition of Diet in Eastern Province Saudi Arabia with Reference to Coronary Heart Disease (رسالة دكتوراه غير منشورة). University of North London، لندن. مسترجع من http://search.mandumah.com/Record/611007
Al Obaid، Ahmed Abd Allah، و Brian B. Bointon. "Food Availability and Fat Composition of Diet in Eastern Province Saudi Arabia With Reference to Coronary Heart Disease" رسالة دكتوراه. University of North London، لندن، 1995. مسترجع من http://search.mandumah.com/Record/611007