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→‎Acknowledgements

==Acknowledgements==

* Jane Olley, [http://www.cd3wd.com/cd3wd_40/cd3wd/Practact/KnO-100410-human_animal_water_lifters.pdf HUMAN & ANIMAL POWERED WATER-LIFTING DEVICES FOR IRRIGATION]. Practical Action, November 2008.

* W. K. Kennedy and T. A. Rogers. [http://docs.watsan.net/Scanned_PDF_Files/Class_Code_2_Water/230-85HU-1269.pdf Human and Animal-Powered Water Lifting Devices: A state of the art survey]. Intermediate Technology Publications, 1985.

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