Mr. Kasame Thepnoo, Department of Drainage and Sewerage, Bangkok Metropolitan Administration, Thailand
Dr. Soydao Vinitnantharat, King Mongkut's University of Technology Thonburi (KMUTT), Thailand
Dr. Suthipong Sthiannopkao, IERC, South Korea
Photographed by: Supachet Rosananont
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