López Fernández, Raúl, Diana Eliza Palmero Urquiza, and Rolando Medina Peña. 2019. “Defined Contexts for Environmental Influence and Sustainable Local Development in the Province of El Oro”. Revista Metropolitana De Ciencias Aplicadas 2 (3): 56-60. https://doi.org/10.62452/fj45d350.