Yahya Algamal, Z., آفان, and A. Al-Saffar. “Improving Generalized Ridge Estimator for the Gamma Regression Model”. IRAQI JOURNAL OF STATISTICAL SCIENCES, vol. 21, no. 1, June 2025, pp. 102-11, https://rjps.uomosul.edu.iq/index.php/stats/article/view/20589.