Khairunnazri, and Yudi Sutaryana. “Cost Efficiency Management of Early Heart Disease Detection in the Era of Digital Health Service Transformation, A Data Mining Classification Model Analysis Using Naive Bayes and Decision Tree C4.5”. Journal of Economic Perspectives and Business Innovation 3, no. 01 (July 20, 2026): 01–10. Accessed August 12, 2026. https://e-journal.icmandalika.or.id/index.php/EPBI/article/view/78.