Sangnawakij, Patarawan, and Wanwarat Anlamlert. “Alternative Confidence Interval for Variability Parameters in the Normal Distribution With Applications to Stock Exchange Index Data Set”. Austrian Journal of Statistics 52, no. 5 (September 11, 2023): 63–81. Accessed February 24, 2024. https://ajs.or.at/index.php/ajs/article/view/1534.