Yunistya, D. I. ., R. . Goejantoro, and F. D. T. . Amijaya. “The Application Of K – Harmonic Means Method In District/City Grouping”. Jurnal Matematika, Statistika Dan Komputasi, vol. 19, no. 1, Sept. 2022, pp. 51-64, https://journal.unhas.ac.id/index.php/jmsk/article/view/21116.