Castro Camargo, Leidy Andrea, Sharon Beatriz George Bracho, Hugo Riatiga Fandiño, Erik José Vera Mercado, and Liliana del Pilar Castro Molano. 2016. “Assessment of Environmental Issues in Marginalized Populations: Study Case of Educational Institution in the Department of Santander, Colombia”. Ingeniería Solidaria 12 (19): 81-97. https://doi.org/10.16925/in.v12i19.1196.