1. Department of Mathematics, Faculty of Science, University of Ha’il, Ha’il 2440, Saudi Arabia
2. Department of Basic Sciences, Preparatory Year Deanship, King Faisal University, Al-Ahsa 31982, Saudi Arabia
3. Department of Computer Science and Mathematics, Mouhamed Cherif Messadia University, Souk Ahras, Algeria
4. Central Department of Mathematics, Tribhuvan University Kritipur, Kathmandu, Nepal
5. Department of Mathematics, Faculty of Science, Mansoura University, Mansoura 35516, Egypt