1
book
Published in 1929
Repository Repositorio Biblioteca Digital CCE
2
bachelorThesis
Published in 2009
Repository Repositorio Universidad de las Américas
3
bachelorThesis
Published in 2022
Repository Repositorio Universidad Católica de Santiago de Guayaquil
4
article
Published in 2024
Repository Repositorio Universidad Andina Simón Bolivar
5
bachelorThesis
Published in 2018
Repository Repositorio Escuela Superior Politécnica del Litoral
6
article
Published in 2023
Repository Revista Andina de Educación