1. Department of Mathematics, Faculty of Science, Khon Kaen University, Khon Kaen, Thailand
2. Department of Mathematics and Statistics, Hazara University, Mansehra, Pakistan
3. Department of Computer Science and Mathematics, Lebanese American University, Beirut, Lebanon
4. Department of Mathematics, Zagazig Faculty of Engineering, Zagazig University, Zagazig, Egypt
5. Faculty of Engineering and Technology, Future University in Egypt, New Cairo, Egypt
6. Basic Engineering Science Department, Benha Faculty of Engineering, Benha University, Benha, Egypt