1
book
Published in 2016
Repository Repositorio Universidad Politécnica Salesiana
2
book
Published in 2016
Repository Repositorio Universidad Politécnica Salesiana
3
book
Published in 2010
Repository Repositorio Universidad Politécnica Salesiana
4
book
Published in 2021
Repository Repositorio Universidad de Especialidades Espíritu Santo
5
book
by Umaquinga Criollo, Ana Cristina; Narváez Pupiales, Sandra Karina; Saltos Echeverría, Tatyana Katherine; Jaramillo Vinueza, Edgar Daniel
Published in 2021
Repository Repositorio Universidad Técnica del Norte
6
book
Published in 2015
Repository Repositorio Universidad Politécnica Salesiana
7
book
Published in 2015
Repository Repositorio Universidad Técnica de Machala
8
book
Published in 1992
Repository Repositorio SENESCYT
9
book
Published in 2013
Repository Repositorio Universidad Politécnica Salesiana
10
book
Published in 2015
Repository Repositorio Universidad Técnica del Norte
11
book
Published in 2005
Repository Repositorio SENESCYT