Rani, M. et al. 2023. 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). 8, 1 (Jan. 2023), 1–11. DOI:https://doi.org/10.24114/cess.v8i1.40158.