H. . M. Gorgees and B. . A. Ali, “Employing Ridge Regression Procedure to Remedy the Multicollinearity Problem”, IHJPAS, vol. 26, no. 1, pp. 320–327, May 2017, Accessed: Sep. 29, 2024. [Online]. Available: https://jih.uobaghdad.edu.iq/index.php/j/article/view/540