Imro'ah, Nurfitri, and Nur'ainul Miftahul Huda. “AN ANALYSIS OF CLUSTER TIMES SERIES FOR THE NUMBER OF COVID-19 CASES IN WEST JAVA”. Jurnal Matematika UNAND, vol. 12, no. 3, Feb. 2024, pp. 203-12, doi:10.25077/jmua.12.3.203-212.2023.