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* [http://www.mrwa.com/OP-Aeration.pdf Aeration.] 明尼苏达州农村水利协会。

* 商业曝气器：[http://www.environmental-expert.com/water-wastewater/water-aeration/products/location-africa Water aeration equipment]. EnvironmentalExpert.com

* [http://www.oecd.org/environment/outreach/36228167.pdf Rural cost functions for water supply and sanitation.] 经济合作与发展组织(OECD)环境行动计划(EAP)工作组秘书处, 2005.

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