Excellence in Research and Innovation for Humanity
Mazidah Tajjudin and  Mohd Hezri Fazalul Rahiman and  Norhashim Mohd Arshad and  Ramli Adnan,  Robust Fractional-Order PI Controller with Ziegler-Nichols Rules.   journal   = {International Journal of Computer, Electrical, Automation, Control and Information Engineering}, [online]. World Academy of Science, Engineering and Technology. July 2013, vol. 79(7). 1034 - 1041[viewed 24 October 2018]. Available from: http://waset.org/publications/16532.