Thailand. Rural Water Supply Division -TH

TH, T.Rural Wate, 1976. Study of an existing water treatment plant of simple design and operating system for supplying drinking water to rural communities in the Lower Mekong Basin countries : study of a slow sand filter, Bangkok, Thailand: Thailand, Ministry of Public Health, Rural Water Supply Division. Available at: https://nl.ircwash.org/sites/default/files/255.1-76ST.pdf.