1. Electrical Engineering Section, Universiti Kuala Lumpur, British Malaysian Institute,Renewable Energy Research Lab (RENERAL),Selangor,Malaysia
2. Universiti Putra Malaysia,Advanced Lightning and Power Energy Research (ALPER), Faculty of Engineering,Department of Electrical and Electronics Engineering,Selangor,Malaysia
3. Universitas Airlangga, JI. Mulyorejo,Faculty of Advanced Technology and Multidicipline,Department of Engineering,Surabaya,Indonesia