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==Original source==

This support material for training of professionals for the sanitation and water sector has been developed by the main authors Jan-Olof Drangert of [http://www.liu.se/?l=en Linköping University]/Vatema, Caroline Schönning of the [http://www.smittskyddsinstitutet.se/ Swedish Institute for Communicable Disease Control], and Björn Vinnerås of the [http://www.slu.se/en/ Swedish University of Agricultural Sciences].

[[Image:sourcebook.png|left|200px| link=http://www.sustainablesanitation.info/index.php]]