1
bachelorThesis
Published in 2003
Repository Repositorio Universidad Politécnica Salesiana
2
article
Published in 2007
Repository Repositorio Facultad Latinoamericana de Ciencias Sociales
3
bachelorThesis
Published in 2008
Repository Repositorio Universidad del Azuay
4
bachelorThesis
Published in 2018
Repository Repositorio Universidad de Cuenca