Mohamed م. إيمان سلام. “Publishing Rules and Table of Contents: Volume 21- No.2- August 2017”. University of Aden Journal of Natural and Applied Sciences 21, no. 2 (August 30, 2017): I-XI. Accessed May 19, 2024. https://uajnas.adenuniv.com/index.php/uajnas/article/view/245.