1. Department of Mathematics, College of Science and Humanities, Prince Sattam bin Abdulaziz University, Al-Kharj, Saudi Arabia
2. Department of Mathematics, Saveetha School of Engineering SIMATS, Chennai, India
3. Department of Mathematics, Near East University, Nicosia, Cyprus
4. Faculty of Art and Science, University of Kyrenia, Kyrenia, Turkey
5. Department of Computer Science and Mathematics, Lebanese American University, Beirut, Lebanon
6. Department of Mathematics, The Women University Multan, Multan, Pakistan