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* [http://www.enterpriseworks.org/display.cfm?id=5&sub=11&cont=6 Pedal Pump, produced by Enterprise Works]
* [http://www.ideorg.org/library/ourlife_much_better.php "Our life is much better" - a case study from Zambia, by IDE]
* [http://www.rwsn.ch/prarticle.2005-10-25.9856177177/prarticle.2005-10-26.2582788867/prarticle.2008-12-04.2105225472 Overview of community handpumps at the RWSN website]