1. University of Engineering and Technology, Lahore,Department of Electrical Engineering,Lahore,Pakistan
2. USPCAS-E NUST,Department of Electrical Power Engineering,Islamabad,Pakistan
3. Al-Zahrawi University College, Karbala, Iraq,Department of Optical Techniques,Karbala,Iraq
4. General Sir John kotelawala Defense University,Faculty of Graduate Studies,Department of Electrical Engineering,Srilanka