Kasmin, Ashari, I. Masood, N. Abdul Rahman, A.L. Fadzillah, and M.N. Abdol Rahman. “Identifying Unnatural Variation in Precision Rotational Part Manufacturing”. International Journal of Integrated Engineering 13, no. 2 (December 3, 2020): 189-195. Accessed June 16, 2021. https://publisher.uthm.edu.my/ojs/index.php/ijie/article/view/7641.