Editorial Board. (2006). DIVERSIFYING THE TOURISM PRODUCT: THROUGH ENVIRONMENTAL AND ECOLOGICAL MANAGEMENT OF PROTECTORATES. الإدارة، مج43, ع4 ، 36 - 55. مسترجع من http://search.mandumah.com/Record/665187
Editorial Board. "DIVERSIFYING THE TOURISM PRODUCT: THROUGH ENVIRONMENTAL AND ECOLOGICAL MANAGEMENT OF PROTECTORATES." الإدارة مج43, ع4 (2006): 36 - 55. مسترجع من http://search.mandumah.com/Record/665187