Dr. Ramesh C. Gupta, Professor of Chemistry, SASRD, Nagaland University, Medziphema; Nagaland – 797106, India
E-mail: rameshgupta1954@yahoo.com

Dr. Ahmed Hashim Mohaisen Al-Yasari, Department of Physics, College of Education For Pure Science, University of Babylon, Hilla, IRAQ
E-mail: ahmed_taay@yahoo.com