Barhamain، S. Y.، و Alexوer، L. (1997). Facilities Planning and Management for the Large-Scale Event Industry with A Particular Reference to A Typical Mega-Event, the Hajj: The Pilgrimage to Makkah Saudi Arabia (رسالة ماجستير غير منشورة). University of Strathclyde، غلاسكو. مسترجع من http://search.mandumah.com/Record/602158
Barhamain، Sami Y.، و Leith Alexوer. "Facilities Planning and Management for the Large-Scale Event Industry With A Particular Reference to A Typical Mega-Event, the Hajj: The Pilgrimage to Makkah Saudi Arabia" رسالة ماجستير. University of Strathclyde، غلاسكو، 1997. مسترجع من http://search.mandumah.com/Record/602158