ET. AL., R. A. . A Review on Multimodal Online Educational Engagement Detection System Using Facial Expression, Eye Movement and Speech Recognition. Turkish Journal of Computer and Mathematics Education (TURCOMAT), [S. l.], v. 12, n. 9, p. 2013–2022, 2021. Disponível em: https://turcomat.org/index.php/turkbilmat/article/view/3667. Acesso em: 27 apr. 2024.