Sentiment Analysis on COVID-19 Vaccine using Naive Bayes Classifier, Support Vector Machine and K-Nearest Neighbors. CESS (Journal of Computer Engineering, System and Science) [Internet]. 2023 Jan. 4 [cited 2026 May 1];8(1):1-11. Available from: https://jurnal.unimed.ac.id/2012/index.php/cess/article/view/40158