1. Environmental Engineering Laboratory
2. Department of Civil Engineering
3. University of Malaya
4. 50603 Kuala Lumpur
5. Malaysia
6. Department of Environmental Engineering
7. Faculty of Engineering and Green Technology
8. Universiti Tunku Abdul Rahman
9. Jalan Universiti
10. 31900 Kampar
11. Environmental Nanotechnology Laboratory
12. Department of Environmental Science and Engineering
13. Indian Institute of Technology (ISM)
14. Dhanbad-826004
15. India
16. Department of Chemistry
17. Faculty of Science
18. Institut fuer Technische Chemie
19. Leibniz Universität Hannover
20. D-30167 Hannover
21. Germany
22. Kwangwoon University
23. Nowon-gu
24. Korea