Supangat, S., Saringat, M. Z. B., & Rochman, M. Y. F. (2023). Predicting Handling Covid-19 Opinion using Naive Bayes and TF-IDF for Polarity Detection. MATRIK : Jurnal Manajemen, Teknik Informatika Dan Rekayasa Komputer, 22(2), 173-184. https://doi.org/10.30812/matrik.v22i2.2227