Authors
Hamdi Muhyuddin Barra
Department of Physics, Faculty of Science, Universiti Putra Malaysia, Malaysia
Physics Department, Mindanao State University – Main Campus, Marawi City, Philippines
Soo Kien Chen
Department of Physics, Faculty of Science, Universiti Putra Malaysia, Malaysia
Nizam Tamchek
Department of Physics, Faculty of Science, Universiti Putra Malaysia, Malaysia
Zainal Abidin Talib
Department of Physics, Faculty of Science, Universiti Putra Malaysia, Malaysia
Oon Jew Lee
School of Fundamental Science, Universiti Malaysia Terengganu, Malaysia
Kar Ban Tan
Department of Chemistry, Faculty of Science, Universiti Putra Malaysia, Malaysia