1. Department of Mathematics, Abbottabad University of Science and Technology, Abbottabad, Pakistan
2. Department of Mathematics, Faculty of Sciences, University of Jeddah, Jeddah, Saudi Arabia
3. Department of Mathematics and Statistics, Hazara University, Mansehra, Pakistan
4. Department of Mathematics, College of Science and Humanities in Al-Aflaj, Prince Sattam bin Abdulaziz University, Al-Aflaj 11912, Saudi Arabia
5. Department of Mathematics, Faculty of Science, Damietta University, New Damietta 34517, Damietta, Egypt
6. Mathematics Department, Al-Qunfudah University College, Umm Al-Qura University, Mecca, Saudi Arabia