ᱫᱟᱜ: ᱨᱮᱱᱟᱜ ᱫᱚᱦᱲᱟᱭᱮᱱ ᱛᱟᱞᱟᱨᱮᱭᱟᱜ ᱯᱷᱟᱨᱟᱠ ᱠᱚ

* [http://ga.water.usgs.gov/edu/ US Geological Survey Water for Schools information]

* [http://water.worldbank.org/ Portal to The World Bank's strategy, work and associated publications on water resources]

 

[[Category:!Main category]]