Sangarun, C., and J. Suntornchost. “Pivot-Based Parameter Estimation for the Gumbel Distribution with Progressive Type-II Censoring Scheme”. Science & Technology Asia, vol. 31, no. 3, Sept. 2026, pp. 59-75, https://ph02.tci-thaijo.org/index.php/SciTechAsia/article/view/263841.