Tan Yi, Fei, Seng Chong Fok, and Hin Pooi Ah. “Optimal Designs Of Two-Sided CUSUM Schemes”. Malaysian Journal of Science 24, no. 2 (August 25, 2005): 45–50. Accessed December 23, 2024. https://jpmm.um.edu.my/index.php/MJS/article/view/8323.