Influence of Fly Ash to Improve the Shear Strength of Commercial and Natural Soil. International Journal of Current Engineering and Technology, [S. l.], v. 1, n. 3.Special Issue, p. 213–216, 2014. Disponível em: https://ijcet.evegenis.org/index.php/ijcet/article/view/3904. Acesso em: 10 jun. 2026.