Srisuradetchai, P. ., and K. . Tonprasongrat. “On Interval Estimation of the Poisson Parameter in a Zero-Inflated Poisson Distribution”. Thailand Statistician, vol. 20, no. 2, Mar. 2022, pp. 357-71, https://ph02.tci-thaijo.org/index.php/thaistat/article/view/246346.