D. DHAGE, SURESH, Dept. of Chemistry, SSJES, Arts, Commerce and Science College, Gangakhed- 431514.Dist. Parbhani (M.S.) DAHINDE, P.S., Department of Physics, R. B. Attal College, Georai-431127 DAHINDE, PRADIP, R.B.Attl Art,Science &Commece College Geoai,Dit.Beed. DEVMUNDE, B.H., Vivekanand Arts S.D. Comm & Sci. College, Aurangabad. Vasantrao Naik College, Aurangabad. DHONDE, S.P., Department of Chemistry, Bhagwan Mahavidyalaya, Ashti-414203 (M.S) India.