1. Department of Physics
2. College of Science
3. King Faisal University
4. Al-Ahsa 31982
5. Saudi Arabia
6. Department of Mathematical and Physical Sciences
7. East West University
8. Dhaka 1212
9. Bangladesh
10. Department of Chemistry
11. University of Dhaka
12. Dhaka-1000
13. Department of Mechanical Engineering
14. Yeungnam University
15. Gyeongsan 712-749
16. Korea
17. Department of Energy and Materials
18. Konkuk University
19. Chungju 27478