“Classification of Coronary Heart Disease at Semen Padang Hospital Using Algorithm Classification And Regression Trees (CART)”. UNP Journal of Statistics and Data Science 1, no. 5 (November 30, 2023): 399–404. Accessed October 4, 2026. https://ujsds.ppj.unp.ac.id/index.php/ujsds/article/view/104.