1. Department of Mathematics, University of Management and Technology, Lahore 54770, Pakistan
2. Department of Mathematics, Cankaya University, Etimesgut, Ankara, Turkey
3. Department of Mathematics, King Abdul Aziz University, Jeddah, Saudi Arabia
4. Department of Medical Research, China Medical University Hospital, China Medical University, Taichung, Taiwan
5. Department of Mathematics and Statistics, College of Science, Taif University, Taif 21944, Saudi Arabia