1. Department of Mathematics, University of Bonab , Bonab , Iran
2. Firat University, Science Faculty, Department of Mathematics , 23119 Elazig , Turkey
3. Biruni University, Department Of Computer Engineering , Istanbul , Turkey
4. Department of Mathematics, Cankaya University, Ogretmenler Caddesi 14, Balgat , 06530 Ankara , Turkey
5. Department of Medical Research, China Medical University Hospital, China Medical University , Taichung , Taiwan
6. Institute of Space Sciences, Magurele-Bucharest , Magurele , Romania