==References and external links==
* Elizabeth Tilley et.al (2008). [http://www.eawag.ch/organisation/abteilungen/sandec/publikationen/publications_sesp/downloads_sesp/compendium_high.pdf Compendium of Sanitation Systems and Technologies] ([http://www.eawag.ch/organisation/abteilungen/sandec/publikationen/publications_sesp/downloads_sesp/compendium_low.pdf low res version]). Department of Water and Sanitation in Development Countries ([http://www.sandec.ch/ Sandec]) at the Swiss Federal Institute of Aquatic Science and Technology (Eawag). (Provides a full overview of sanitation systems.)
* Brandberg, B. (1997). [http://developmentbookshop.com/product_info.php?products_id=299 Latrine Building. A Handbook for Implementation of the Sanplat System]. Intermediate Technology Publications, London. pp 55–77 (Describes how to build a squatting slab and the moulds for the frame, footrests, spacers, etc.)