Al Otaibi، B. J.، و Engel، D. (1993). ATIITUDES OF TEACHERS TOWARD THE "KNOWING THAT' AND "KNOWING HOW" METHODS OF TEACHING IN SAUDI ARABIAN SECONDARY SCHOOLS (رسالة دكتوراه غير منشورة). University of Pittsburgh، بيتسبرغ. مسترجع من http://search.mandumah.com/Record/611843
Al Otaibi، Badr J.، و David Engel. "ATIITUDES OF TEACHERS TOWARD THE "KNOWING THAT' AND "KNOWING HOW" METHODS OF TEACHING IN SAUDI ARABIAN SECONDARY SCHOOLS" رسالة دكتوراه. University of Pittsburgh، بيتسبرغ، 1993. مسترجع من http://search.mandumah.com/Record/611843