Estimating the survival function using the bivariate Weibull distribution based on the coupling function (IFM) with application. Journal of the College of Basic Education, [S. l.], v. 32, n. 137, p. 356–376, 2026. DOI: 10.35950/cbej.v32i137.15624. Disponível em: https://cbej.uomustansiriyah.edu.iq/index.php/cbej/article/view/15624.. Acesso em: 23 aug. 2026.