1. Department of Chemistry
2. University of Zululand
3. Kwa-Dlangezwa 3880
4. South Africa
5. Materials Laboratory
6. Mirpur University of Science & Technology (MUST)
7. Mirpur-10250
8. Pakistan
9. School of Natural Sciences
10. National University of Science and Technology
11. Islamabad 46000
12. Pittsburg State University
13. Pittsburg
14. USA
15. Labette County High School
16. Altamont
17. Allama Iqbal Open University
18. Islamabad