1. Department of Mathematics, Faculty of Science, University of Sargodha, Sargodha 40100, Pakistan
2. Department of Mathematics, COMSATS University Islamabad, Islamabad 44000, Pakistan
3. Department of Aeronautics and Astronautics, Air Force Institute of Technology, Wright Patterson Air Force Base, Dayton, OH 45433, USA
4. Mathematics Department, Faculty of Science, University of Tabuk, Tabuk, Saudi Arabia
5. Department of Mathematics, College of Science Al-Zulfi, Majmaah University, Al-Majmaah 11952, Saudi Arabia
6. Department of Mathematics, Bonga University, Bonga, Ethiopia