Mohamed م. إ. س. Publishing Rules and Table of Contents: Volume 21- No.1- April 2017. University of Aden Journal of Natural and Applied Sciences, [S. l.], v. 21, n. 1, p. I-XI, 2017. Disponível em: https://uajnas.adenuniv.com/index.php/uajnas/article/view/222. Acesso em: 17 may. 2024.