"Rehabilitation of Rangeland and The Possibility of Productivity Improvement in Wadi Al-khun (Hadhramout)" (2023) Hadhramout University Journal of Natural & Applied Sciences, 15(1). موجود في: https://hu.edu.ye/hu-publications/journals/index.php/hujnas/article/view/97 (تاريخ الوصول: 28 يوليو 2026).