1. Department of Mathematics and Statistics, Hazara University Mansehra, Dhodial, Mansehra, Khyber Pakhtunkhwa 21300, Pakistan
2. Higher Education Deparment, University of Azad Jammu & Kashmir, AJK 13100, Pakistan
3. School of Mathematics and Statistics, Central South University, Changsha 410083, China
4. Mechanical Engineering Department, College of Engineering, King Saud University, Riyadh 11451, Saudi Arabia