Sunthornwat, Rapin, and Yupaporn Areepong. “Approximate Average Run Length and Its Eigenvalue Problem on Exponentially Weighted Moving Average Control Chart: An Economic Application”. Asia-Pacific Journal of Science and Technology 25, no. 04 (December 29, 2020): APST–25. Accessed May 4, 2024. https://so01.tci-thaijo.org/index.php/APST/article/view/241299.