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دليل المستخدم
Al Abdali، A.، و Izz Aldin، M. (1996). An Investigation Into the Overall Impact of the Season of Hajj on the Economy of Makkah: With Special Investigation Into the Trade of Consumer Goods (رسالة دكتوراه غير منشورة). University of Wales، كارديف. مسترجع من http://search.mandumah.com/Record/610115
Al Abdali، Abid، و Mawil Izz Aldin. "An Investigation Into the Overall Impact of the Season of Hajj On the Economy of Makkah: With Special Investigation Into the Trade of Consumer Goods" رسالة دكتوراه. University of Wales، كارديف، 1996. مسترجع من http://search.mandumah.com/Record/610115