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* VIDEO: [http://www.thewaterchannel.tv/index.php?option=com_hwdvideoshare&task=viewvideo&Itemid=4&video_id=611 media-gallery/641-manual-drilling-and-pump-installation-madagascar Manual drilling and pump installation, Madagascar] by The Water Channel.
* [http://www.rural-water-supply.net/en/resources/details/402 Human-Powered Drilling Technologies], Richard Carter, Cranfield University, 2005.
* [http://www.hydrology.nl/images/docs/ihp/nl/cop15/2_Richard_Taylor.pdf Groundwater and climate change in Africa: The Kampala Statement.] Richard Taylor, University College London (UK), IAH Commission of Groundwater & Climate Change.
