1. “Transmission and distribution in India”, technical report by Powergrid Govt. of India, New-Delhi, 2012.
2. Ravi S Gorur, Edward Cherney and Jeffrey Burnham,“Outdoor Insulators”, text book, Phoenix, Arizona, USA 1999.
3. GEC, EPRI and Project UHV, “Transmission line reference book, 345 kV and above”, 5 Aug 2011.
4. Eric H. Allen and Peter L. Levin, “Two dimensional and Axi-symmetric Boundary value problems in Electrostatics”, Computational Fields Laboratory, Dept. of ECE, Worcester Polytechnic Institute, Worcester, MA-USA -1993.
5. Udaya Kumar and Vasu M, “Studies on Voltage distribution in ZnO Surge Arrester”, IEE Proc. Generation, Trans and Distribution, Vol.149, No.4, pp 457-462, July 2002.