Feijoo Calle, Ernesto Patricio, Emmanuel Choco Salinas, Gerardo Pelaez Becerra, and Bernardo Feijoo Guevara. “Point Load Test Index and Its Relation With Dimensions in Regular Rock Block”. Revista Tecnológica - ESPOL 34, no. 2 (June 30, 2022): 29–40. Accessed November 28, 2025. https://www.rte.espol.edu.ec/index.php/tecnologica/article/view/886.