Al Awad، S. M. (2001). The Use of Remotely Sensed Data for Land Use / Land Cover Survey, Mapping and Monitoring-Gedaref Region, Eastern Sudan. مجلة دراسات حوض النيل، مج2, ع3 ، 61 - 72. مسترجع من http://search.mandumah.com/Record/607674
Al Awad، Saeed Mosmar. "The Use of Remotely Sensed Data for Land Use / Land Cover Survey, Mapping and Monitoring-Gedaref Region, Eastern Sudan." مجلة دراسات حوض النيل مج2, ع3 (2001): 61 - 72. مسترجع من http://search.mandumah.com/Record/607674