“Evaluating Determinants Of Survival Time In Heart Failure Patients Using Cox Proportional Hazards Regression”. UNP Journal of Statistics and Data Science 4, no. 3 (Agustus 31, 2026): 299–305. Diakses Oktober 3, 2026. https://ujsds.ppj.unp.ac.id/index.php/ujsds/article/view/477.