1. Heriot-Watt University Malaysia,School of Mathematical and Computer Sciences,Putrajaya,Malaysia
2. Heriot-Watt University,School of Mathematical and Computer Sciences,Edinburgh,United Kingdom
3. Faculty of Engineering and Green Technology Universiti Tunku Abdul Rahman Kampar,Department of Electronic Engineering,Perak,Malaysia
4. Universiti Sains Malaysia,School of Management,Penang,Malaysia