Shayya, W.H., A.S. Al-Ghafry, and W.R. Norman. “Irrigation Water Costs and Management Practices Among Farms M Northern Oman”. Journal of Agricultural and Marine Sciences [JAMS] 3, no. 1 (January 1, 1998): 1–8. Accessed May 3, 2024. https://journals.squ.edu.om/index.php/jams/article/view/512.