1. Department of Basic Sciences, College of Science and Theoretical Studies, Saudi Electronic University, Riyadh 11673, Saudi Arabia
2. Department of Statistics, Quaid-i-Azam University, Islamabad 44000, Pakistan
3. Department of Mathematics, College of Arts and Sciences, Wadi Ad Dawasir, Prince Sattam Bin Abdul Aziz University, Al-Kharj 11991, Saudi Arabia
4. Department of Mathematics, Faculty of Education, Ain Shams University, Cairo 11566, Egypt
5. Basic Sciences Department, Common First Year Deanship, King Saud University, Riyadh 11451, Saudi Arabia
6. Department of Mathematical Science, Faculty of Applied Science, Umm Al-Qura University, Makkah 24382, Saudi Arabia