Mohammed إ. س. SUBJECT INDEX (Volume 19 – 2015): Subject index of research papers published in the "University of Aden Journal of Natural & Applied Sciences", and their authors Volume 19 (April- August 2015). University of Aden Journal of Natural and Applied Sciences, [S. l.], v. 20, n. 1, p. 103–109 & 235, 2016. Disponível em: https://uajnas.adenuniv.com/index.php/uajnas/article/view/318. Acesso em: 22 dec. 2024.