Abdulhadi , Dalia, Wadhah Ibrahim, Rawaa Al-Saffar, Haifa Abd, and Ahmed Salih. “Performance of the Generalized Shrinkage Estimator in Zero-Inflated Bell Regression Model”. Statistics, Optimization & Information Computing (December 21, 2025). Accessed January 11, 2026. http://47.88.85.238/index.php/soic/article/view/3302.