1. Department of Computer Science, FSKTM, Universiti Putra Malaysia, Selangor, Malaysia
2. Geomatika University College, Kuala Lumpur, Malaysia
3. Department of Computing, Universiti Pendidikan Sultan Idris, Tanjong Malim, Perak 35900, Malaysia
4. Faculty of Electronic and Electrical Engineering, Universiti Tun Hussein Onn, 86400, Batu, Pahat, Johor, Malaysia