GORGEES, Hazim M.; ALI, Bushra A. Employing Ridge Regression Procedure to Remedy the Multicollinearity Problem. Ibn AL-Haitham Journal For Pure and Applied Sciences, Baghdad, Iraq., v. 26, n. 1, p. 320–327, 2017. Disponível em: https://jih.uobaghdad.edu.iq/index.php/j/article/view/540. Acesso em: 30 mar. 2025.