Chaturvedi, D. K., Rahul Umrao, and Vikas Pratap Singh. 2014. “Adaptive Polar Fuzzy Load Frequency Controller for Nonlinear Multi-Area Power System”. Power Research - A Journal of CPRI, September, 453-64. https://node6473.myfcloud.com/~geosocin/CPRI/index.php/pr/article/view/788.