Vhallah, Ieannoal, Sumijan Sumijan, and Julius Santony. “Pengelompokan Mahasiswa Potensial Drop Out Menggunakan Metode Clustering K-Means”. Jurnal RESTI (Rekayasa Sistem dan Teknologi Informasi) 2, no. 2 (August 2, 2018): 572 - 577. Accessed September 19, 2021. https://jurnal.iaii.or.id/index.php/RESTI/article/view/308.