1. Department of Mathematics, Government College University, Faisalabad 38000, Pakistan
2. Department of Mathematics, Lahore College for Women University, Lahore, Pakistan
3. Department of Physics, Government College University, Faisalabad 38000, Pakistan
4. Department of Mathmatics, Cankaya University, Ankara, Turkey
5. Department of Medical Research, China Medical University Hospital, China Medical University, Taichung, Taiwan
6. Department of Mathematics, King Abdulaziz University, Jeddah, Saudi Arabia