This article is part of WikiProject Vietnam, an attempt to create a comprehensive, neutral, and accurate representation of Vietnam on Wikipedia. If you would like to participate, please visit the project page.VietnamWikipedia:WikiProject VietnamTemplate:WikiProject VietnamVietnam
This article is within the scope of WikiProject Sanitation, a collaborative effort to improve the coverage of Sanitation on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.SanitationWikipedia:WikiProject SanitationTemplate:WikiProject Sanitationsanitation