1. Department of Studies and Research in Industrial Chemistry
2. School of Chemical Sciences, Kuvempu University
3. Shankaraghatta-577 451
4. India
5. Department of Physics
6. Ibb University
7. Ibb
8. Yemen
9. DOS in Earth Science
10. University of Mysore
11. Mysore-570006
12. Department of Chemistry
13. Yuvaraja's College (Autonomous)
14. Adichunchanagiri University
15. Mandya
16. Department of Chemistry, College of Science
17. King Saud University
18. Riyadh
19. Saudi Arabia