1. Govt. Degree College Mardan, 23200 Mardan, Pakistan
2. Institute of Numerical Sciences, Kohat University of Science and Technology, Kohat, Pakistan
3. Department of Mathematics, Faculty of Science, Mansoura 35516, Egypt
4. Department of Mathematics, Faculty of Ocean Engineering Technology and Informatics, Universiti Malaysia Terengganu, 21030 Kuala Nerus, Terengganu, Malaysia
5. School of Mathematics and Computer Sciences, Chifeng University, Chifeng 024000, China