1
book
Published in 2013
Repository Repositorio Universidad Andina Simón Bolivar
2
book
Published in 2012
Repository Repositorio Universidad Técnica del Norte
3
book
by Castillo Andrade, Rocío Elizabeth; Villafuerte Ledesma, Kelvin Wladimir; Gordillo Alarcón, Alicia Salomé; Pacheco Quintana, Carmen Cecilia; Gómez Gordillo, Alejandra Maribel; Miniet Castillo, Adriana Edit; González Pardo, Secundino; Vaca Oña, Juan Francisco; Anaya González, Jorge Luís; Rodríguez Cervantes, Eddison Geovanny; Espinel Jara, Viviana Margarita
Published in 2023
Repository Repositorio Universidad Técnica del Norte
4
book
Published in 1997
Repository Repositorio SENESCYT
5
book
Published in 1998
Repository Repositorio SENESCYT
6
book
Published in 1999
Repository Repositorio SENESCYT