1. Kyambogo University,Dept of Electrical Engg,Kampala,Uganda
2. Dept of Electrical and electronics Engg Annamacharya Inst. of Tech. and Sci,Hyderabad,India
3. Dept of Electrical and electronics Engg V. R. Siddhartha Engineering College,Vijayawada,India
4. Dept of Electrical Power Systems Dept of Atomic Energy,Mumbai,India