J. A, Z.Abidin A, Mat Darus IZ, Tokhi M. Controlling the non-parametric modeling of Double Link Flexible Robotic Manipulator using Hybrid PID tuned by P-Type ILA. IJIE. 2018;10(7). Accessed April 8, 2026. https://publisher.uthm.edu.my/ojs/index.php/ijie/article/view/3491