RATNANINGSIH, D. J.; KURNIA, A.; SAEFUDDIN, A.; MANGKU, I. W. Mixed Models of Non-Proportional Hazard and Application in The Open Distance Education Students Retention Data. Journal of the Indonesian Mathematical Society, [S. l.], v. 28, n. 3, p. 323–344, 2022. DOI: 10.22342/jims.28.3.1185.323-344. Disponível em: https://jims-a.org/index.php/jimsa/article/view/1185. Acesso em: 9 may. 2024.