1. Department of Physics, Radio Cosmology Research Laboratory, University of Malaya, Kuala Lumpur, Malaysia
2. Department of Electrical and Electronic Engineering, Universiti Teknologi PETRONAS, Bandar Seri Iskandar, Perak Darul Ridzuan, Malaysia
3. Applied Physics Electrical and Instrumentation, Faculty of Engineering and Technology, University of Gezira, Wad Medani, Sudan
4. Department of Civil and Environmental Engineering, Universiti Teknologi PETRONAS, Bandar Seri Iskandar, Perak Darul Ridzuan, Malaysia
5. School of Electrical Engineering, College of Engineering, Universiti Teknologi MARA, Shah Alam, Selangor, Malaysia