Rodríguez, Lyna M., and John J. Sánchez. 2018. “Morphometry, Stratigraphy, Petrography, and Geochemistry of El Morro Scoria Cone, La Argentina Municipality (Huila, Colombia)”. Boletín De Geología 40 (3):49-65. https://doi.org/10.18273/revbol.v40n3-2018003.