2
book
Published in 2020
Repository Repositorio Universidad Laica Vicente Rocafuerte
3
book
Published in 2020
Repository Repositorio Universidad Laica Vicente Rocafuerte
5
book
Published in 2015
Repository Repositorio Universidad Técnica de Machala
6
book
Published in 2010
Repository Repositorio SENESCYT
7
book
by Freire Morán, Fabricio; Acosta Véliz, Marjorie; Morales Navas, María Elena; Palma Murillo, Rafael; Bermúdez Gallegos, Christian; Cabezas García, Genaro; Onofre Risco, Solange; Morales Vergara, Roberto; Ordóñez León, Yeni; Hurtado-Baque, Lissette; Lovato Torres, Sofía; Carrera Jiménez, Javier; Delgado Macay, Nelly; Mite Albán, María Teresa; Jara-Camejo, Jacqueline
Published in 2023
Repository Repositorio Universidad Politécnica Salesiana
8
book
Published in 1997
Repository Repositorio SENESCYT