Using the penalized splines regression method to estimate the logistic model and using a practical application. Journal of the College of Basic Education, [S. l.], v. 27, n. 113, p. 370–379, 2022. DOI: 10.35950/cbej.v27i113.5017. Disponível em: https://cbej.uomustansiriyah.edu.iq/index.php/cbej/article/view/5017.. Acesso em: 4 jun. 2026.