Yañez, Karol, Joyce Valdovinos, and Fabricio Espinosa. “Environmental Sustainability for Intermediate Cities in the Global South”. Runas. Journal of Education and Culture 1, no. 2 (December 18, 2020): 81-93. Accessed June 17, 2021. http://runas.religacion.com/index.php/about/article/view/24.