1. Mathematics Department, Faculty of Science, Zagazig University
2. Basic Science Department, Higher Institute of Foreign Trade and Management Sciences
3. Department of Applied Sciences, Cross�Border Faculty of Humanities, Economics and Engineering, Dunarea de Jos University of Galati
4. Department of Computer Engineering, Biruni University
5. Department of Mathematics and Applied Mathematics, Sefako Makgatho Health Sciences University
6. Department of Mathematics and Statistics, Tshwane University of Technology
7. Independent Researcher
8. Mathematical Modeling and Applied Computation (MMAC) Research Group, Center of Modern Mathematical Sciences and their Applications (CMMSA), Department of Mathematics, King Abdulaziz University