BRIGNARDELLO T., L. A., J. VILLAGRAN T, and N. GOMEZ M. “Internal Sociogeographic Differentiation of Greater Valparaíso: Spatial Dimension of Quality of Life”. Revista De Geografía Norte Grande, no. 25, Oct. 2021, pp. 33-47, https://ojs.uc.cl/index.php/RGNG/article/view/42199.