1. Department of Physics, Universiti Putra Malaysia 1 , Serdang Selangor 43400, Malaysia
2. Physics Division, Centre of Foundation Studies for Agricultural Science, Universiti Putra Malaysia 2 , Serdang Selangor 43400, Malaysia
3. SMART RG, Faculty of Science and Technology (FST), Universiti Sains Islam 3 , Nilai Negeri Sembilan 43400, Malaysia