Holman Tua, A., 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 ”. International Journal of Technology Vocational Education and Training, Vol. 1, no. 1, June 2020, pp. 61-66, doi:10.46643/ijtvet.v1i1.16.