1
book
Published in 1921
Repository Repositorio Biblioteca Digital CCE
2
book
Published in 1993
Repository Repositorio Universidad Politécnica Salesiana
3
book
by Yáñez sdb, Marcial; Almeida-Guerrero, Angélica; Juncosa Blasco, José Enrique; Parra, Gabriela; Sarmiento Arévalo, Galo
Published in 2024
Repository Repositorio Universidad Politécnica Salesiana
4
book
Published in 1930
Repository Repositorio Biblioteca Digital CCE
5
book
Published in 2018
Repository Repositorio Universidad Técnica de Machala
6
book
Published in 2023
Repository Repositorio Universidad Andina Simón Bolivar