Al Azba، A. A. A.، و Fangmeler، D. D. (1994). EFFICIENCY OF IRRIGATION BORDERS AS AFFECTED BY INFLOW HYDROGRAPH SHAPE (رسالة دكتوراه غير منشورة). University of Arizona، توسان. مسترجع من http://search.mandumah.com/Record/617367
Al Azba، Abd Alrahman Ali، و D. D. Fangmeler. "EFFICIENCY OF IRRIGATION BORDERS AS AFFECTED BY INFLOW HYDROGRAPH SHAPE" رسالة دكتوراه. University of Arizona، توسان، 1994. مسترجع من http://search.mandumah.com/Record/617367