ENRIQUE ESPINOZA FREIRE, D. C. E. E.; GRANDA-AYABACA, M. S. D. M.; VILLACRES ARIAS, L. G. E. Distance Education in times of COVID-19 at the Technical University of Machala Basic Education major. Transformación, v. 17, n. 2, p. 169–183, 27 Jan.2021.