JIAO, Fengming; SONG, Jiao; ZHAO, Xin; ZHAO, Ping; WANG, Ru. A Spoken English Teaching System Based on Speech Recognition and Machine Learning. International Journal of Emerging Technologies in Learning (iJET), [S. l.], v. 16, n. 14, p. pp. 68–82, 2021. DOI: 10.3991/ijet.v16i14.24049. Disponível em: https://online-journals.org/index.php/i-jet/article/view/24049. Acesso em: 1 may. 2024.