LIANG, Yanqiu. Intelligent Emotion Evaluation Method of Classroom Teaching Based on Expression Recognition. International Journal of Emerging Technologies in Learning (iJET), [S. l.], v. 14, n. 04, p. pp. 127–141, 2019. DOI: 10.3991/ijet.v14i04.10130. Disponível em: https://online-journals.org/index.php/i-jet/article/view/10130. Acesso em: 27 apr. 2024.