Khamalin, S. M., M. Bayu Nirwana, and I. Susanto. “Regresi Extended Cox Pada Kasus Nonproportional Hazard”. STAINS (SEMINAR NASIONAL TEKNOLOGI &Amp; SAINS), vol. 2, no. 1, Jan. 2023, pp. 1-6, https://proceeding.unpkediri.ac.id/index.php/stains/article/view/2798.