ElhanA., HardhienataM.K.D., HerdiyeniY., WijayaS.H. and AdisantosoJ. 2022. Sentiment Analysis of Twitter Users on COVID-19 Vaccines in Indonesia using Random Forest and BERT Algorithms. Jurnal Ilmu Komputer dan Agri-Informatika. 9, 2 (Nov. 2022), 199-211. DOI:https://doi.org/10.29244/jika.9.2.199-211.