Mohamed م. إ. س. (2019) “SUBJECT INDEX (Volume 22 – 2018): Subject index of research papers published in the ‘University of Aden Journal of Natural & Applied Sciences’, and their authors Volume 22(April- August 2018)”, University of Aden Journal of Natural and Applied Sciences, 23(1), pp. 139–144 & 253. Available at: https://uajnas.adenuniv.com/index.php/uajnas/article/view/14 (Accessed: 21 November 2024).