Sentiment Analysis on Twitter Social Media Regarding Covid-19 Vaccination with Naive Bayes Classifier (NBC) and Bidirectional Encoder Representations from Transformers (BERT). Recursive J. of Informatics [Internet]. 2024 Sep. 30 [cited 2025 Dec. 5];2(2):106-13. Available from: https://journal.unnes.ac.id/journals/rji/article/view/34871