1. S.O.S in Chemistry, Jiwaji University, Gwalior, MP, India
2. Department of Chemistry, Institute of H. Science, Khandari, Dr. Bhimrao Ambedkar University, Agra, UP, India
3. Department of Chemistry, Indian Institute of Technology, Kanpur, UP, India
4. Department of Chemistry, Howard University, Washington, DC, USA
5. USIC, Dayalbagh Educational Institute Agra, UP, India