Hasdyna, Novia, Rozzi Kesuma Dinata, and Balqis Yafis. 2025. “Optimizing K-Means Algorithm Using the Purity Method for Clustering Oil Palm Producing Regions”. JISKA (Jurnal Informatika Sunan Kalijaga) 10 (1):1-15. https://doi.org/10.14421/jiska.2025.10.1.1-15.