1. Faculty of Computer Science and Information Technology, Universiti Tun Hussein Onn Malaysia (UTHM), Johor Bahru, Malaysia
2. School of Computing, Universiti Utara Malaysia, Sintok, Malaysia
3. Department of Computer Engineering, College of Computer and Information Sciences, King Saud University, Riyadh, Saudi Arabia
4. School of Continuing Studies, McGill University, Montreal, QC, Canada
5. Department of Mathematics, Faculty of Science and Mathematics, Universiti Pendidikan Sultan Idris, Tanjong Malim, Malaysia
6. Department of Information Technology, Politeknik Negeri Padang, Sumatera Barat, Padang, Indonesia