ALI, M. F.; KHATUN, M.; TURZO, N. A. Facial Expression Recognition Using Neural Network. Research Transcripts in Computer, Electrical and Electronics Engineering, [S. l.], v. 2, p. 33–52, 2021. Disponível em: https://www.grinrey.com/journals/index.php/rtceee/article/view/11. Acesso em: 5 feb. 2026.