CUI, Yuxin; WANG, Sheng; ZHAO, Ran. Machine Learning-Based Student Emotion Recognition for Business English Class. International Journal of Emerging Technologies in Learning (iJET), [S. l.], v. 16, n. 12, p. pp. 94–107, 2021. DOI: 10.3991/ijet.v16i12.23313. Disponível em: https://online-journals.org/index.php/i-jet/article/view/23313. Acesso em: 22 nov. 2024.