Saputra, A. and Prasetiyo, B. 2024. Sentiment Analysis on Twitter Social Media Regarding Covid-19 Vaccination with Naive Bayes Classifier (NBC) and Bidirectional Encoder Representations from Transformers (BERT). Recursive Journal of Informatics. 2, 2 (Sep. 2024), 106 - 113. DOI:https://doi.org/10.15294/rji.v2i2.67502.