LI, Y.; QU, C. College English Education Platform Based on Browser/Server Structure and Flipped Classroom. International Journal of Emerging Technologies in Learning (iJET), [S. l.], v. 14, n. 15, p. pp. 171–181, 2019. DOI: 10.3991/ijet.v14i15.11147. Disponível em: https://online-journals.org/index.php/i-jet/article/view/11147. Acesso em: 22 jan. 2022.