Anugrah, M., Sari, H.L. and Alinse, R.T. 2022. Application Of The Preference Selection Index And Method K-Means Clustering Method In Sales Product ( Case Study Of Ocha Cell Store). Jurnal Media Computer Science. 1, 2 (Jul. 2022), 205–218. DOI:https://doi.org/10.37676/jmcs.v1i2.2705.