1. Department of Computer Science, College of Al Wajh, University of Tabuk, Tabuk, Saudi Arabia
2. Department of Mathematics, Faculty of Sciences, Al-Azhar University, Assiut 71524, Egypt
3. King Khalid University, College of Science, Department of Mathematics, P.O. Box 9004, Abha 61413, Saudi Arabia
4. Department of Engineering Mathematics and Physics, Faculty of Engineering, Al-Azhar University, Cairo, Egypt