1. IEC, 2006, IEC60076-7 Loading guide for oil immersed transformers.
2. IEEE, 2000, 1538-2000 IEEE Guide for Determination of Maximum Winding Temperature Rise in Liquid-Filled Transformers.
3. Incropera, F. P. & DeWitt, D. P. 1996, Fundamentals of Heat and Mass Transfer, 4th edition, J. Wiley & Sons, New York.