Mohamed م. إ. س. (2020) “SUBJECT INDEX (Volume 23 – 2019): Subject index of research papers published in the ‘University of Aden Journal of Natural & Applied Sciences’, and their authors Volume 24 (April- October 2020)”, University of Aden Journal of Natural and Applied Sciences, 24(1), pp. 113–117 & 295. Available at: https://uajnas.adenuniv.com/index.php/uajnas/article/view/62 (Accessed: 18 May 2024).