Panichkitkosolkul, W. (2020) “An Improved Confidence Interval for The Difference between Standard Deviations of Normal Distributions Using a Ranked Set Sampling”, Journal of Science and Technology, 12(1), pp. 29–40. Available at: https://penerbit.uthm.edu.my/ojs/index.php/JST/article/view/6106 (Accessed: 23 July 2024).