Mohamed م. إ. س. Publishing Rules and Table of Contents: Volume 25- No.1- April 2021. University of Aden Journal of Natural and Applied Sciences, [S. l.], v. 25, n. 1, p. I-X, 2021. Disponível em: https://uajnas.adenuniv.com/index.php/uajnas/article/view/99. Acesso em: 9 may. 2024.