A. Jalil, Mohd Hafiz, Mohd Nasir Taib, M. H. Fazalul Rahiman, and Rohaiza Hamdan. “Back Calculation Anti Windup PID Controller on Several Well-Known Tuning Method for Glycerin Bleaching Process Temperature Regulation”. International Journal of Integrated Engineering 6, no. 3 (1). Accessed March 5, 2021. https://publisher.uthm.edu.my/ojs/index.php/ijie/article/view/1033.