GEOTECHNICAL CHARACTERIZATION OF THE VOLCANICLASTIC ROCKS IN AND AROUND TAIZ CITY, YEMEN. International Journal of Engineering Sciences & Management Research, [S. l.], v. 3, n. 4, p. 14–31, 2016. Disponível em: https://ijesmr.com/index.php/ijesmr/article/view/217. Acesso em: 27 apr. 2026.