Rintara, Pannipa, Syed Ejaz Ahmed, and Supranee Lisawadi. “Post Improved Estimation and Prediction in the Gamma Regression Model”. Thailand Statistician 21, no. 3 (June 28, 2023): 580–606. accessed April 13, 2025. https://ph02.tci-thaijo.org/index.php/thaistat/article/view/250068.