Syahputra, Ronaldo, and Wifra Safitri. “Analisa Tingkat Prestasi Atlet Karate Sumatera Barat Menggunakan Algoritma Data Mining”. Indonesian Journal of Computer Science 7, no. 2 (October 31, 2018): 200-210. Accessed November 14, 2019. http://ijcs.stmikindonesia.ac.id/index.php/ijcs/article/view/93.