Student textual feedback sentiment analysis using machine learning techniques to improve the quality of education. Pakistan Journal of Engineering, Technology and Science, [S. l.], v. 11, n. 2, p. 32–40, 2023. DOI: 10.22555/pjets.v11i2.1039. Disponível em: https://journals.iobm.edu.pk/index.php/pjets/article/view/1039. Acesso em: 4 apr. 2026.