A. Holman Tua and E. Elisa, “Information System Analysis of Priority Data Mining Members Cards Using the K-Means Algoritma in Ramayana Panbil : Analisis Data Mining Penentuan Prioritas Penggunaan Member Card Menggunakan Algoritma K-Means Pada Ramayana Panbil ”, ijtvet, vol. 1, no. 1, pp. 61-66, Jun. 2020.