The Analysis of the PEC Situation y Proposals of an Action Plan for La Troncal County, Cañar Province, Ecuador. Revista Científica Ciencias Naturales y Ambientales, [S. l.], v. 9, n. 2, p. 6, 2015. DOI: 10.53591/cna.v9i2.242. Disponível em: https://revistas.ug.edu.ec/index.php/cna/article/view/1800. Acesso em: 5 dec. 2025.