DR. CHRIST BARRIGA P.; ING. MABEL CALDERÓN V. Use of Gas Emulsion in Blasting Project for Clearing in a Copper Mine in Southern Peru. International Journal of Engineering and Management Research, [S. l.], v. 11, n. 5, p. 157–164, 2021. DOI: 10.31033/ijemr.11.5.19. Disponível em: https://www.ijemr.net/ojs/index.php/ijemr/article/view/163. Acesso em: 7 dec. 2021.