1. Department of Mathematics, University of the Punjab, Lahore, Pakistan
2. Faculty of Sciences, Department of Basic Sciences, Namal Institute, Mianwali, Pakistan
3. Department of Computer Engineering, Biruni Universiity, Istanbul, Turkey
4. Department of Mathematics, Science Faculty, Firat University, Elazig, Turkey
5. Department of Medical Research, China Medical University Hospital, China Medical University, Taichung, Taiwan