Study Of Shape and Inclined Surface Pillar Effect On Strength Of Pillar. PROMINE, [S. l.], v. 7, n. 1, p. 08–14, 2019. DOI: 10.33019/promine.v7i1.1055. Disponível em: https://journal.ubb.ac.id/index.php/promine/article/view/1055. Acesso em: 27 nov. 2025.