Giraldo Uribe, José Jardani, María del Pilar Sánchez Muñoz, and Héctor Hugo Ruíz Agudelo. 2020. “Environmental Indicators for Sustainable Tourism Proposal. Case of the La Tatacoa Desert, Huila, Colombia”. Semestre Económico 23 (54): 239-61. https://doi.org/10.22395/seec.v23n54a12.