W. I. Yudhistyra, E. M. Risal, I.- soon Raungratanaamporn, and V. Ratanavaraha, “Using Big Data Analytics for Decision Making: Analyzing Customer Behavior using Association Rule Mining in a Gold, Silver, and Precious Metal Trading Company in Indonesia”, Int. J. Data. Science., vol. 1, no. 2, pp. 57-71, Jun. 2020.