Dr. Vishnu Narayan Mishra, Assistant Professor of Mathematics, Sardar Vallabhbhai National Institute of Technology, India
E-mail: vishnu_narayanmishra@yahoo.co.in
Dr. Wei-Kai Lai, Associate Professor of Mathematics, University of South Carolina Salkehatchie, USA
E-mail: LaiW@mailbox.sc.edu
Dr. Mustafa ÖZKAN, Department of Mathematics, Faculty of Science, Trakya University, Edirne, TURKEY
Email: mustafaozkan@trakya.edu.tr
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