"Using Groundwater Flow Model (MODFLOW) As a Management Tool for Targeted Sub-Basins in Sana’a Basin" (2023) Hadhramout University Journal of Natural & Applied Sciences, 14(1). موجود في: https://hu.edu.ye/hu-publications/journals/index.php/hujnas/article/view/44 (تاريخ الوصول: 23 يوليو 2026).