Mohamed م. إ. س. “AUTHOR INDEX (Volume 22 – 2018): Author Index of Papers Published in the ‘ University of Aden Journal of Natural & Applied Sciences’ and Their Addresses Volume 22 (April- August 2018)”. University of Aden Journal of Natural and Applied Sciences, vol. 23, no. 1, Apr. 2019, pp. 145-149 & 261, https://uajnas.adenuniv.com/index.php/uajnas/article/view/15.