ANALISIS SENTIMEN OPINI TERHADAP VAKSIN COVID-19 PADA MEDIA SOSIAL TWITTER MENGGUNAKAN NAÏVE BAYES DAN DECISION TREE. ZONAsi: Jurnal Sistem Informasi, [S. l.], v. 5, n. 1, p. 100–110, 2023. DOI: 10.31849/zn.v5i1.5553. Disponível em: https://journal.unilak.ac.id/index.php/zn/article/view/5553. Acesso em: 9 may. 2026.