Tanzil, Alferedo, Randy Aldany Barasa, Yonata Laia, and Jepri Banjarnahor. 2023. “Analysis of Method C5.0 in Triggering Factors The Number of Covid-19 Increases or Decreases After Getting the Vaccine”. Jurnal Sistem Informasi Dan Ilmu Komputer Prima(JUSIKOM PRIMA) 6 (2):35-37. https://doi.org/10.34012/jurnalsisteminformasidanilmukomputer.v6i2.3410.