Mushofy Anwary, A. et al. 2021. ANALISIS SENTIMENT PENGGUNAAN VAKSIN COVID-19 MENGGUNAKAN GEO-TAGGED TWEETS DAN ALGORITMA NAIVE BAYES. Informatics and Digital Expert (INDEX). 3, 2 (Nov. 2021), 75–83. DOI:https://doi.org/10.36423/index.v3i2.876.