SALARI, P. .; LASHKARIPOUR, G. .; GHAFOORI, M. . Presentation of Empirical Equations for Estimating Internal Friction Angle of SP and SC Soils in Mashhad, Iran Using Standard Penetration and Direct Shear Tests and Comparison with Previous Equations. International Journal of Geography and Geology, [S. l.], v. 4, n. 5, p. 89–95, 2015. DOI: 10.18488/journal.10/2015.4.5/10.5.89.95. Disponível em: https://archive.conscientiabeam.com/index.php/10/article/view/1938. Acesso em: 17 jun. 2024.