1
book
Published in 2019
Repository Repositorio Universidad Andina Simón Bolivar
2
book
Published in 2024
Repository Repositorio Universidad Estatal Península de Santa Elena
3
book
by Alvarado Avilés, Franklin Gilberto; Chávez Cruz, Gonzalo Junior; Campuzano Vásquez, John Alexander
Published in 2015
Repository Repositorio Universidad Técnica de Machala
4
book
Published in 1929
Repository Repositorio Biblioteca Digital CCE