Pinit Ngamsom. (2016) A Graphical Robust PID Controller Design for Time-Varying Uncertain Systems with Applications to Trajectory Tracking of a Load-Varying Rigid SCARA. <i>Thammasat International Journal of Science and Technology</i>, <i>21</i>(2), 34-44.Pinit Ngamsom. "A Graphical Robust PID Controller Design for Time-Varying Uncertain Systems with Applications to Trajectory Tracking of a Load-Varying Rigid SCARA". Thammasat International Journal of Science and Technology 21 (2016):34-44.Pinit Ngamsom. A Graphical Robust PID Controller Design for Time-Varying Uncertain Systems with Applications to Trajectory Tracking of a Load-Varying Rigid SCARA. กองบริหารการวิจัย:ม.ป.ท. 2016.