AHMED M. MAMI; ABDELBASET ABDALLA; EISAY H. BIN ISMAEIL. Selecting the Optimal Value of Penalty Parameter K in Ridge Regression Estimators. International Journal of Sciences: Basic and Applied Research (IJSBAR), Jordan, v. 60, n. 5, p. 189–209, 2021. Disponível em: https://www.gssrr.org/JournalOfBasicAndApplied/article/view/13597. Acesso em: 11 sep. 2025.