Hassan, Hesham Mahmoud, and Moatasim Daood Soliman. 2013. “STUDY OF SOME PHYSICAL AND HYDRAULIC PROPERTIES OF SOIL UNDER DIFFERENT POWING SYSTEMS IN ARID AGRICULTURE”. Diyala Agricultural Sciences Journal 5 (2):523-31. https://journal.djas.uodiyala.edu.iq/index.php/dasj/article/view/2850.