VERA DE LA TORRE, A. J.; MENDOZA CHAVARRIA, V. C.; ESCALANTE GAMAZO, M. C.; CUMBE CORAIZACA, D. M. Building up the English language listening skill through M-Learning tools. A preliminary study. ConcienciaDigital, v. 6, n. 1.4, p. 983-994, 8 mar. 2023.