1. Department of Mathematics, Mirpur University of Science and Technology (MUST), Mirpur-10250 (AJK), Pakistan
2. Punjab University College of Information Technology, University of the Punjab, Lahore 54000, Pakistan
3. Department of Mathematics, COMSATS University Islamabad, Lahore Campus, Pakistan
4. Department of Mathematics, Firat University, Elazig, Turkey
5. Department of Mathematics Education, Final International University, Kyrenia, Cyprus