1. Department of Mathematics, S.A. Engineering College, Chennai, India
2. Department of Computer Science and Engineering, S.A. Engineering College, Chennai, India
3. Department of Mathematics, Aditya College of Engineering and Technology, Surampalem, India
4. Faculty of Computer Science, Ho Chi Minh City Open University, Ho Chi Minh City, Vietnam
5. School of Computer Science and Engineering, Chung-Ang University, Seoul, South Korea