WASET
    Satean Tunyasrirut and  Tianchai Suksri and  Arjin Numsomran and  Supan Gulpanich and  Kitti Tirasesth,  The Auto-Tuning PID Controller for Interacting Water Level Process.   journal   = {International Journal of Electrical and Information Engineering}, [online]. World Academy of Science, Engineering and Technology.
    December 2007, vol. 12(12). 773 - 777
    [viewed 25 April 2024]. Available from: https://publications.waset.org/pdf/9049.