1. Department of Chemistry
2. Guru Nanak Dev University
3. Amritsar-143005
4. India
5. School of Molecular and Cell Biology
6. University of the Witswatersrand
7. Johannesburg
8. South Africa
9. School of Chemistry and Physics
10. University of KwaZulu Natal
11. Durban 4000
12. DAV College
13. Amritsar-143001