"The A comparative Study of The Morphological and Anatomical Characteristics of The Leaves of Three Date Palm Cultivars Phoenix Dactylifera L. in Hadhramout Valley and Coast" (2023) Hadhramout University Journal of Natural & Applied Sciences, 19(2). موجود في: https://hu.edu.ye/hu-publications/journals/index.php/hujnas/article/view/29 (تاريخ الوصول: 23 يوليو 2026).