1. Universiti Teknologi Malaysia and Telkom University,Razak Faculty of Technology and Informatics and School of Computing,Kuala Lumpur,Malaysia
2. Universiti Teknologi Malaysia and Telkom University,Razak Faculty of Technology and Informatics and School of Computing,Bandung,Indonesia
3. Telkom University,School of Computing,Bandung,Indonesia
4. Wroclaw University of Science and Technology,Doctoral School of Information and Communication Technology,Wroclaw,Poland