Rahma, A. S., N. Rahma, and R. A. Putri. “Design of a Rule-Based CIS to Determine the Customer Status of Bank Sumut Binjai”. RIGGS: Journal of Artificial Intelligence and Digital Business, vol. 4, no. 4, Jan. 2026, pp. 8716-23, doi:10.31004/riggs.v4i4.4953.