SAMIDI, S.; FATMAWATI, D. . Sentiment Classification of IT Service Feedback via TF-IDF. CogITo Smart Journal, [S. l.], v. 10, n. 2, p. 403–417, 2024. DOI: 10.31154/cogito.v10i2.701.403-417. Disponível em: https://cogito.unklab.ac.id/index.php/cogito/article/view/701. Acesso em: 3 aug. 2025.