1. Department of Physics, Lal Bahadur Shastri Mahavidyalaya, Dharmabad (MS), India
2. Department of Physics, S.I.C.E.S. Degree College, Ambarnath (W) (MS), India
3. Department of Electronics, Lal Bahadur Shastri Mahavidyalaya, Dharmabad (MS, India
4. School of Physical Sciences, S.R.T. M. University, Nanded (MS), India