Predicting Customer Satisfaction Through Layered NLP Techniques: Traditional Meets Deep Learning. ITEGAM-JETIA, [S. l.], v. 12, n. 57, p. 188–200, 2026. DOI: 10.5935/jetia.v12i57.2854. Disponível em: https://itegam-jetia.org/journal/index.php/jetia/article/view/2854. Acesso em: 22 oct. 2026.