AHMED, N. M. M. Preliminary geological and geochemical study of clay at Al-Harur area, Abyan governorate, Yemen. University of Aden Journal of Natural and Applied Sciences, [S. l.], v. 23, n. 2, p. 425–441, 2019. DOI: 10.47372/uajnas.2019.n2.a13. Disponível em: https://uajnas.adenuniv.com/index.php/uajnas/article/view/39. Acesso em: 16 sep. 2024.