Niyomdecha, Ausaina, Patchanok Srisuradetchai, and Benjamas Tulyanitikul. 2023. “Gamma Zero-Truncated Poisson Distribution with the Minimum Compounded Function”. Thailand Statistician 21 (4):863-86. https://ph02.tci-thaijo.org/index.php/thaistat/article/view/251065.