Pongpullponsak*, A., Suracherkiiati, W. and Intaramo, R. (2018) “The Comparison of Efficiency of Control Chart by Weighted Variance Method, Scaled Weighted Variance Method, Empirical Quantiles Method and Extreme-Value Theory for Skewed Populations”, CURRENT APPLIED SCIENCE AND TECHNOLOGY. Bangkok, Thailand, 6(2a), pp. 456–465. available at: https://li01.tci-thaijo.org/index.php/cast/article/view/147965 (accessed: 24 September 2026).