Changes

*Strande, L., Ronteltap, M. and Brdjanovic, D. (Eds.) (2014). [https://www.susana.org/en/knowledge-hub/resources-and-publications/library/details/3591 Faecal Sludge Management. Systems Approach for Implementation and Operation]. IWA Publishing, London, UK. (Detailed book compiling the current state of knowledge on all aspects related to FSM):Available at: [http://www.sandec.ch sandec.ch]

* U.S. EPA (1999). [https://www.epa.gov/biosolids/biosolids-generation-use-and-disposal-united-states Biosolids Generation, Use, and Disposal in the United States]. EPA-530/R-99-009. U.S. Environmental Protection Agency, Washington, D.C., US.:Available at: [http://www.epa.gov epa.gov]

* U.S. EPA (1994). [https://www.epa.gov/biosolids/plain-english-guide-epa-part-503-biosolids-rule A Plain English Guide to the EPA Part 503 Biosolids Rule]. EPA832-R-93-003. U.S. Environmental Protection Agency, Washington, D.C., US.:Available at: [http://www.epa.gov epa.gov]

* WHO (2006). [https://www.who.int/water_sanitation_health/publications/gsuweg4/en/ Guidelines for the Safe Use of Wastewater, Excreta and Greywater. Volume 4: Excreta and Greywater Use in Agriculture]. World Health Organization, Geneva, CH.:Available at: [http://www.who.int who.int]