Ortega-Auquilla, D. ., . P. . Sigüenza-Garzón, J. . Chumbay, and E. . Heras. “Motivation in English Learning at University: A Mixed-Methods Study Investigating the Perceptions of Different Stakeholders”. International Journal of Learning, Teaching and Educational Research, vol. 21, no. 12, Dec. 2022, pp. 175-96, http://www.ijlter.net/index.php/ijlter/article/view/1486.