Srisuradetchai, P., and S. Junnumtuam. “Wald Confidence Intervals for the Parameter in a Bernoulli Component of Zero-Inflated Poisson and Zero-Altered Poisson Models With Different Link Functions”. Science & Technology Asia, Vol. 25, no. 2, June 2020, pp. 1-14, https://ph02.tci-thaijo.org/index.php/SciTechAsia/article/view/175918.