Thalia, N., A. M. H. . Pardede, and H. . Khair. “Expert System for Diagnosing EDC Cash Register Malfunctions Using the Decision Tree Method”. Journal of Intelligent Decision Support System (IDSS), vol. 8, no. 3, Sept. 2025, pp. 169-7, doi:10.35335/idss.v8i3.307.