A. Oglah, A., and A. J. Mohammed. “Design of an Interval Fuzzy Type-2- PID Controller for a Gas Turbine Power Plant”. American Scientific Research Journal for Engineering, Technology, and Sciences, vol. 44, no. 1, June 2018, pp. 155-69, https://asrjetsjournal.org/index.php/American_Scientific_Journal/article/view/4171.