Dayanti, R., Kurniawan, R. and Suprapti, T. 2025. Optimalization of Grouping Models on Sales Transaction Data in the Josi.Id Store Using the K-Means Algorithm. Jurnal Informatika dan Rekayasa Perangkat Lunak. 6, 1 (Mar. 2025), 84-96. DOI:https://doi.org/10.33365/jatika.v6i1.21.