Putri, Ferennia, BAP Martadiputra, and Lukman Lukman. “Log-Rank Test As A Continuation of The Kaplan-Meier Method in Survival Analysis Using R Language (Case Study: D-Penicillamine Treatment on the Probabillity of Survival in Primary Biliary Cirrhosis (PBC) Patients at the Mayo Clinic)”. Jurnal Matematika, Statistika dan Komputasi 21, no. 1 (September 15, 2024): 285-306. Accessed December 11, 2024. http://118754.2bdvi7ajx.asia/index.php/jmsk/article/view/36073.