Purnomo, J. D. T. (2026) “Bivariate Survival Copula Analysis of Cataract Patients During Blindness: Cataract Cases at Undaan Eye Hospital, Surabaya”, Journal of Multidisciplinary Applied Natural Science. Metro, Indonesia, 6(3), pp. 1451–1465. doi: 10.47352/jmans.2774-3047.448.