Mohamed م. إ. س. Publishing Rules and Table of Contents: Volume 23- No.1- April 2019. University of Aden Journal of Natural and Applied Sciences, [S. l.], v. 23, n. 1, p. I-XI, 2019. Disponível em: https://uajnas.adenuniv.com/index.php/uajnas/article/view/1. Acesso em: 23 jul. 2024.