1. Department of Mathematics, Islamia College University Peshawar, Peshawar, Khyber Pakhtunkhwa, Pakistan
2. Department of Mathematics Education, University of Education Winneba Kumasi-(kumasicompus), Kumasi 00233, Ghana
3. Department of Mathematical Sciences, University of Lakki Marwat, Lakki Marwat 28420, KPK, Pakistan
4. Department of Mathematics College of Science & Arts, King Abdul-Aziz University, Rabigh 21911, Saudi Arabia