Fatmawaty, Virdiana Sriviana, et al. “Higher Education Institution Clustering Based on Key Performance Indicators Using Quartile Binning Method”. MATRIK : Jurnal Manajemen, Teknik Informatika Dan Rekayasa Komputer, vol. 24, no. 1, Nov. 2024, pp. 141-54, https://doi.org/10.30812/matrik.v24i1.4244.