1. Department of Mathematics, Division of Science and Technology, University of Education Lahore, Attock Campus, Attock, Pakistan
2. Department of Mathematics, Abdul Wali Khan University Mardan, Mardan, Pakistan
3. School of Business Information Technology, College of Technology and Design, University of Economics Ho Chi Minh City, Ho Chi Minh City, Vietnam
4. School of Information and Communication Technology, Hanoi University of Science and Technology, Hanoi, Vietnam