Bahumaid، A. A.، و Al Tan، H. (2009). Development of A Design for A Shade in Rectangular Courtyards in Hot-dry Climate Regions by Using Computer Simulation (رسالة ماجستير غير منشورة). University of Sheffield، شفيلد. مسترجع من http://search.mandumah.com/Record/600759
Bahumaid، Ahmed A.، و Hasim Al Tan. "Development of A Design for A Shade in Rectangular Courtyards in Hot-dry Climate Regions By Using Computer Simulation" رسالة ماجستير. University of Sheffield، شفيلد، 2009. مسترجع من http://search.mandumah.com/Record/600759