1. Department of Geography, Faculty of Social Sciences, Srinakharinwirot University, Bangkok, Thailand
2. Civil Engineering Department, King Mongkut’s University of Technology Thonburi, Bangkok, Thailand
3. Drainage information Division, Drainage and Sewerage Department, Bangkok Metropolitan Administration, Bangkok, Thailand
4. Department of Microbiology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand