1. Department of Mathematics, Faculty of Science in Zulfi, Majmaah University, Al Majma'ah 11952, Saudi Arabia
2. Department of Mathematics, Faculty of Science, Tanta University, Tanta 31527, Egypt
3. Basic and Applied Science Institute, Arab Academy for Science, Technology and Maritime Transport (AASTMT), Alexandria, Egypt
4. Department of Mathematics, Pan-African Institute of Basic Science Technology and Innovation, Nairobi, Kenya
5. Department of Accounting, College of Business Administration in Hawtat Bani Tamim, Prince Sattam bin Abdulaziz University, Hawtat Bani Tamim, Saudi Arabia
6. Department of Mathematics, Faculty of Science, Helwan University, Cairo, Egypt