1. Universiti Kebangsaan Malaysia,Faculty of Science and Technology,Department of Applied Physics,Bangi,Malaysia
2. Universiti Kebangsaan Malaysia,Faculty of Engineering and Built Environment,Department of Applied Physics, Faculty of Science and Technology; Space Science Centre (ANGKASA), Institute of Climate Change, Department of Electrical, Electronic and Systems Engineering,Bangi,Malaysia
3. Universiti Kebangsaan Malaysia,Faculty of Engineering and Built Environment,Space Science Centre (ANGKASA), Institute of Climate Change; Department of Electrical, Electronic and Systems Engineering,Bangi,Malaysia