The Environmental assessment of drilling system groundwater in Merced community, canton Colta, Chimborazo. Revista Científica Ciencias Naturales y Ambientales, [S. l.], v. 9, n. 2, p. 10, 2015. DOI: 10.53591/cna.v9i2.238. Disponível em: https://revistas.ug.edu.ec/index.php/cna/article/view/1796. Acesso em: 5 dec. 2025.