Thalia, Novi, Akim Manaor Hara Pardede, and Husnul Khair. 2025. “Expert System for Diagnosing EDC Cash Register Malfunctions Using the Decision Tree Method”. Journal of Intelligent Decision Support System (IDSS) 8 (3):169-79. https://doi.org/10.35335/idss.v8i3.307.