1. Ibnu Sina Institute for Fundamental Science Studies, Universiti Teknologi Malaysia, 81310 UTM Skudai, Johor, Malaysia
2. Department of Physics, Faculty of Science, Universiti Teknologi Malaysia, 81310 UTM Skudai, Johor, Malaysia
3. Department of Physics, Faculty of Mathematic and Science, Universitas Negeri Semarang, Semarang, Indonesia