Wulandari , A., and M. Safii. “Application of Data Mining in Classification Fresh Milk Production by Province Using K-Means Algorithm”. Journal of Computer Science and Research (JoCoSiR), vol. 1, no. 1, Jan. 2023, pp. 29-33, http://journal.aptikomsumut.org/index.php/jocosir/article/view/4.