1. Department of Mathematics, College of Science, University of Ha'il, Ha'il 81451, Saudi Arabia
2. Department of Mathematics and Computer Science, Faculty of Science, Port Said University, Port Said 42521, Egypt
3. University of Oradea, Department of Mathematics, Universitatii 1, 410087 Oradea, Romania
4. Department of Mathematics, Faculty of Science, Damietta University, New Damietta 34517, Egypt