Bhagat, Sanjeev Kumar, et al. “Maiden Application of Meta-Heuristic Techniques With Optimized Integral Minus Tilt-Derivative Controller for AGC of Multi-Area Multi-Source System”. EAI Endorsed Transactions on Scalable Information Systems, vol. 7, no. 28, May 2020, p. e5, https://doi.org/10.4108/eai.13-7-2018.164557.