1. Rubiyatno:
Institute of Environmental and Water Resources Management, Faculty of Civil Engineering, Universiti Teknologi Malaysia, UTM Skudai, Johor, Malaysia
2. Tony Hadibarata:
Institute of Environmental and Water Resources Management, Faculty of Civil Engineering, Universiti Teknologi Malaysia, UTM Skudai, Johor, Malaysia
3. Nova Yanti:
Faculty of Environmental Science and Management, University Putra Malaysia, UPM Serdang, Malaysia
4. Bunrith Seng:
Interclisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Kofu Japan