W. Wahyuri, U. Athiyah, I. Puspitasari, and Y. Nita, “Clustering of Drug Sampling Data to Determine Drug Distribution Patterns with K-Means Method : Study on Central Kalimantan Province, Indonesia”, J. Inf. Syst. Eng. Bus. Intell., vol. 5, no. 2, pp. 208–218, Oct. 2019.