Ocaña Ávila, Luis Antonio; Ríos Quiñónez, María Belén2024-10-042024-10-042024-08-16978-9942-636-99-7https://www.dspace.cordillera.edu.ec/handle/123456789/584581 p.eshttp://purl.org/coar/access_right/c_abf2Book