Annahdi، F. A. A.، و McFarlane، J. (1982). The Geology Mineralogy and Geochemistry of the Area Around the Ancient Kutam Copper Mine in South-West Saudi Arabia (رسالة دكتوراه غير منشورة). University of Central Lancashire، بريستون. مسترجع من http://search.mandumah.com/Record/600213
Annahdi، Faisal Abd Allah، و J. McFarlane. "The Geology Mineralogy and Geochemistry of the Area Around the Ancient Kutam Copper Mine in South-West Saudi Arabia" رسالة دكتوراه. University of Central Lancashire، بريستون، 1982. مسترجع من http://search.mandumah.com/Record/600213