1. Earth Resources Exploration Research Group, Faculty of Mining and Petroleum Engineering, Institut Teknologi Bandung; Bandung Indonesia
2. Department of Urban Management; Graduate School of Engineering, Kyoto University; Kyoto Japan
3. Graduate School of Advanced Integrated Studies in Human Survivability; Kyoto University; Kyoto Japan
4. Graduate School of Environmental Studies; Tohoku University; Sendai Miyagi Japan
5. Consultant; Cupertino; California United States