1. Department of Mathematics and Sciences, College of Humanities and Sciences, Prince Sultan University, Riyadh 11586, Saudi Arabia
2. Department of Mathematics, The Islamia University of Bahawalpur, Bahawalpur 63100, Pakistan
3. Department of Mathematics, Institute of Arts and Sciences, Government College University, Faisalabad, Chiniot Campus 35400, Pakistan
4. Department of English Linguistics and Literature, Riphah International University Faisalabad Campus, Faisalabad 38000, Pakistan
5. Department of Mathematics, University of Education Faisalabad Campus, Faisalabad 38000, Pakistan