“Chemical and Biochemical Evaluation of Aloe vacillans Forsskål forms and their Taxonomical Significance Cultivated in Amran Governorate-Yemen” (2026) University of Aden Journal of Natural and Applied Sciences, 29(2), pp. 11–25. Available at: https://journals.aden-univ.net/index.php/uajnas/article/view/26 (Accessed: 24 August 2026).