METODE FUZZY TIME SERIES MODEL CHEN UNTUK MEMPREDIKSI JUMLAH KASUS AKTIF COVID-19 DI INDONESIA. TRANSFORMASI, [S. l.], v. 18, n. 1, 2022. DOI: 10.56357/jt.v18i1.298. Disponível em: https://www.ejournal.stmikbipa.me/index.php/JT/article/view/298. Acesso em: 27 apr. 2026.