1. Wuchang University of Technology, Wuhan, P. R. China
2. Department of Computer Science and Engineering, European University Cyprus, Nicosia, Cyprus
3. Department of Computer Engineering, Engineering and Architecture Faculty, Kastamonu University, Kastamonu, Turkey
4. Institute of Mathematical Sciences, Faculty of Science, University of Malaya, Kuala Lumpur 50603, Malaysia
5. Department of Mathematics and Statistics, Washington State University, Pullman, WA 99163, USA
6. Jabalia Camp, United Nations Relief and Works Agency (UNRWA), Palestinian Refugee Camp, Gaza Strip Jabalya, Palestine