1. Institute of Microengineering and Nanoelectronics (IMEN), Universiti Kebangsaan Malaysia (UKM), Bangi, Selangor, Malaysia
2. School of Distance Education, Universiti Sains Malaysia (USM), Pulau Pinang, Malaysia
3. Faculty of Science and Technology, Universiti Kebangsaan Malaysia (UKM), Bangi, Selangor, Malaysia
4. Institute of Power Engineering, Universiti Tenaga Nasional, Putrajaya Campus, Kajang, Selangor, Malaysia
5. Department of Electrical, Electronic, and Systems Engineering, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, Bangi, Selangor, Malaysia
6. Institute of Microengineering and Nanoelectronics (IMEN) and the Faculty of Science and Technology, Universiti Kebangsaan Malaysia (UKM), Bangi, Selangor, Malaysia
7. Institute of Microengineering and Nanoelectronics (IMEN), Department of Electrical, Electronic, and Systems Engineering, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia (UKM), Bangi, Selangor, Malaysia