1. Department of Mathematics, Rajeev Gandhi Memorial College of Engineering and Technology (Autonomous), Nandyal, Andhra Pradesh, India
2. Department of Mathematics, The University of Faisalabad, Faisalabad, Pakistan
3. Department of Mathematics, Turabah University College, Taif University, Taif, Saudi Arabia
4. Department of Mathematics, College of Science, Qassim University, Buraydah, Saudi Arabia
5. Department of Mathematics, Faculty of Education, Ain Shams University, Heliopolis, Cairo, Egypt
6. Department of Management Information Systems, College of Business and Economics, Qassim University, Buraydah, Saudi Arabia