M. R. Pavithra, Dr. P. Balamurugan. “Fuzzy Six Sigma Based Regression Control Chart Under Moderateness”. International Journal of Advanced Science and Technology 29, no. 04 (October 3, 2020): 9941 -. Accessed April 27, 2024. http://sersc.org/journals/index.php/IJAST/article/view/33020.