Almache Granda, G. K., Mora Aristega, J. E., Garcia Leon, E. P. y Cifuentes Rojas, M. T. (2020) «Gamifying formative assessment to improve speaking accuracy and motivation in EFL learners», Journal of Science and Research, 5(CININGEC), pp. 562–577. Disponible en: https://revistas.utb.edu.ec/index.php/sr/article/view/993 (Accedido: 23 abril 2024).