-
1by Paéz Bustillos, Romel Joaquín, Grijalva Olmedo, Jorge Eduardo, Quisirumbay-Gaibor, Jimmy
Published 2018Digital revistaUPS EC -
2by Páez Bustillos,,Romel Joaquín, Grijalva Olmedo,,Jorge Eduardo, Quisirumbay-Gaibor,Jimmy Rolando
Published 2018Digital revistaSCIELO