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= 鸣谢 =
* [http://www.samsamwater.com/library/Smart_Water_Solutions_-_EN.pdf SmartWater Solutions:Examples of innovative, low-cost technologies for wells, pumps, storage, irrigation and water treatment.] 或 ([http://docs.watsan.net/Downloaded_Files/PDF/NWP-2006-Smartwater.pdf alternative link]).Netherlands Water Partnership荷兰水合作会, 2006.
