1. Elgerd, O.I.: Electric Energy Systems Theory—An Introduction, 2nd edn. Tata McGraw-Hill, New Delhi, India (2000)
2. Kundur, P.: Power System Stability and Control. Tata McGraw-Hill, New York, NY, USA (1994)
3. Bevrani, Hassan: Robust Power System Frequency Control, vol. 85. Springer, New York (2009)
4. Elgerd, O.I., Fosha, C.E.: Optimum megawatt-frequency control of multiarea electric energy systems. IEEE Trans. Power Apparatus Syst. PAS 89(4), 556–563 (1970)
5. Nanda, J., Mishra, S., Saikia, L.C.: Maiden application of bacterial foraging-based optimization technique in multiarea automatic generation control. IEEE Trans. Power Syst. 24(2), 602–609 (2009)