HARVEY ARCE, Norman Patrick; CUADROS VALDIVIA, Ana Maria. Adapting Competitiveness and Gamification to a Digital Platform for Foreign Language Learning. International Journal of Emerging Technologies in Learning (iJET), [S. l.], v. 15, n. 20, p. pp. 194–209, 2020. DOI: 10.3991/ijet.v15i20.16135. Disponível em: https://online-journals.org/index.php/i-jet/article/view/16135. Acesso em: 28 mar. 2024.