1. Faculty of Engineering, SEGi University , Jalan Teknologi, Kota Damansara, Petaling Jaya 47810, Selangor, Malaysia
2. Lee Kong Chian Faculty of Engineering & Science, Universiti Tunku Abdul Rahman Sungai Long Campus , Jalan Sungai Long, Bandar Sungai Long, Kajang 43000, Selangor, Malaysia
3. Faculty of Engineering, Multimedia University , Persiaran Multimedia, Cyberjaya 63100, Selangor, Malaysia
4. School of Science and Technology, Middlesex University , London NW44BT, UK