1. University of Mataram,Dept of Informatics Engineering,Mataram,Indonesia
2. University of Mataram,Dept of Agriculture,Mataram,Indonesia
3. University of Mataram,Dept of Electrical Engineering,Mataram,Indonesia
4. National Taiwan University of Science and Technology,Dept of Electrical Engineering,Taipei,Taiwan
5. Telkom University,Department of Information System,Bandung,Indonesia