Samsudin, S. I. ., Sulaiman, S. F. ., Osman, K. ., Salim, S. I. M. ., & Mohd Azam, S. N. . (2022). Development of Nonlinear Adaptive PI Controller For Improved Pneumatic Actuator System. International Journal of Integrated Engineering, 14(6), 206-215. https://penerbit.uthm.edu.my/ojs/index.php/ijie/article/view/9673