Cando GuanoluisaF. «Influence of Oral Homework on Oral Competence in a Beginning English Class at Technical University of Cotopaxi». Revista UTCiencia: I-ISSN: 1390-6909. E-ISSN: 2602-8263, Vol. 2, n.º 3, julio de 2017, pp. 162-9, http://investigacion.utc.edu.ec/index.php/utciencia/article/view/36.