SOWMIYA, G.; KUMUTHA, V. Facial Expression Recognition Using Static Facial Images. International Journal of Scientific Research in Computer Science and Engineering, [S. l.], v. 6, n. 2, p. 72–75, 2018. Disponível em: https://ijsrcse.isroset.org/index.php/j/article/view/241. Acesso em: 4 apr. 2025.