1
article
Published in 2010
Repository Repositorio Escuela Superior Politécnica del Litoral
2
other
Published in 1892
Repository Repositorio Biblioteca Digital CCE
3
bachelorThesis
Published in 2017
Repository Repositorio Universidad Técnica del Norte
4
other
Published in 1892
Repository Repositorio Facultad Latinoamericana de Ciencias Sociales