1. King Saud University, College of Science, Riyadh, Saudi Arabia + Department of Mathematics, Faculty of Science and Arts, Kirikkale University, Yahsihan, Kirikkale, Turkey
2. College of Science, Geology and Geophysics Department, King Saud University, Riyadh, Saudi Arabia
3. Department of Mathematics, College of Science, King Saud University, Riyadh, Saudi Arabia
4. College of Engineering, Petroleum and Natural Gas Engineering Department, King Saud University, Riyadh, Saudi Arabia + Faculty of Science, Geology Department, Benha University, Benha, Egypt