GUETL, Christian; CHANG, Vanessa; EDWARDS, Athur; BORUTA, Stefanie. Flexible and Affordable Foreign Language Learning Environment based on Web 2.0 Technologies. International Journal of Emerging Technologies in Learning (iJET), [S. l.], v. 8, n. 2, p. pp. 16–28, 2013. DOI: 10.3991/ijet.v8i2.2488. Disponível em: https://online-journals.org/index.php/i-jet/article/view/2488. Acesso em: 24 apr. 2024.