1. University of Nigeria,Electrical Engineering,Nsukka,Nigeria
2. University of Nigeria,Electrical Engineering Unn. Africa Centre of Excellence for Sustainable Power and Energy Development, UNN. Laboratory of Industrial Electronics, Power Devices and New Energy Systems,Nsukka Enugu state,Nigeria
3. Michael Okpara University of Agriculture,Department of Electrical and Electronics Engineering,Umudike,Abia State,Nigeria
4. University of Nigeria,Electrical Engineering,Nsukka
5. Enugu State Polytechnic,Department of Electrical/Electronics Engineering,Iwollo,Enugu State,Nigeria