Water Cycle Division, River Department, National Institute for Land and Infrastructure Management (NILIM), Ministry of Land, Infrastructure, Transport and Tourism (MLIT)

Water Quality Research Division, Water Resources Environment Center (WEC)

Water Course Engineering & Water Resource Dept, Pacific Consultants Co., Ltd.

Water Quality Research Division, Water Resources Environment Center (WEC)

Water Environment Research Group, Public Works Research Institute (PWRI)

Water Environment Research Group, Public Works Research Institute (PWRI)