Naji, Adel Hmood Lutf. “Applied Geomorphological Study of Slopes Shapes on Both Sides of Naqeel Sumara Road in Ibb Governrate-Yemen”. Journal of Arts 1, no. 20 (September 1, 2021): 436–454. Accessed July 22, 2024. https://journal.tu.edu.ye/index.php/artsmain/article/view/735.