WASET
Mahmudizad, M. , Ahangar, R.. "Improving Load Frequency Control of Multi-Area Power System by Considering Uncertainty by Using Optimized Type 2 Fuzzy Pid Controller with the Harmony Search Algorithm". World Academy of Science, Engineering and Technology, Open Science Index 116, International Journal of Electrical and Information Engineering, (2016), 10(8), 1099 - 1109.