LIU, Ying; YAN, Hong. Design and Implementation of an Intelligent Online English Learning System Based on Mobile Internet Technology. International Journal of Emerging Technologies in Learning (iJET), [S. l.], v. 16, n. 24, p. pp. 108–120, 2021. DOI: 10.3991/ijet.v16i24.27835. Disponível em: https://online-journals.org/index.php/i-jet/article/view/27835. Acesso em: 26 apr. 2024.