“Application of Fuzzy C-Means in Grouping Districts Cities Based on Health Service Facilities in East Java”. Inform : Jurnal Ilmiah Bidang Teknologi Informasi dan Komunikasi 3, no. 2 (October 3, 2018): 62–68. Accessed June 16, 2026. https://ejournal.unitomo.ac.id/index.php/inform/article/view/1070.