ERVANDI, D.; NOVRIANI, A.; LUTHFIYAH, A. D.; SIREGAR, F. A. H. .; MUKHTI, T. O. Stratified Cox Regression Approach to Identifying Prognostic Factors for Survival in Breast Cancer Patients. UNP Journal of Statistics and Data Science, [S. l.], v. 3, n. 4, p. 406–412, 2025. DOI: 10.24036/ujsds/vol3-iss4/418. Disponível em: https://ujsds.ppj.unp.ac.id/index.php/ujsds/article/view/418. Acesso em: 14 jun. 2026.