Vol 4, No 35 (2020)

October - December

DOI: https://doi.org/10.31876/er.v4i35

Table of Contents

Girard D. Vernaza Arroyo, Joselin Germania Chamorro Quiñonez
Darwin Alexis Cruz García
Arturo Barraza Macías
Eudaldo Enrique Espinoza Freire, Lázara Herrera Martínez, Verónica Jacqueline Guamán Gómez
Shirley Andrea Ovalle Barreto, Emilse Yenith Alarcón Avella