1. Department of Mathematics, GC University Faisalabad Layyah Campus, Layyah-31200, Pakistan
2. Division of Human Support System, Faculty of Symbiotic Systems Science, Fukushima University, Fukushima 960-1296, Japan
3. Department of Mathematics, The Islamia University of Bahawalpur, Bahawalpur-63100, Pakistan
4. Department of Mathematics and Statistics, The University of Lahore 1-Km Raiwind Road, Sultan Town Lahore 54000, Pakistan