1. Department of Mathematics and Statistics, Riphah International University I-14, Islamabad, Pakistan
2. Faculty of Engineering, Free University of Bozen-Bolzano, Bolzano, Italy
3. Department of Mathematics, Faculty of Arts and Science, Yildiz Technical University, Istanbul, Turkey
4. Department of Mathematics, Anand International College of Engineering, Jaipur, India
5. Nonlinear Dynamics Research Center (NDRC), Ajman University, Ajman, UAE
6. Department of Economics, Kabridahar University, Kabridahar, Ethiopia
7. University Centre for Research & Development, University School of Business, Chandigarh University, Gharuan, Mohali, Punjab, India