1. For a general information brochure on the work of WHO see URL: http://www.who.int/about/brochure_en.pdf [accessed 2008 6 March].
2. For a general information brochure on the work of WHO see URL: http://www.who.int/about/brochure_en.pdf [accessed 2008 6 March].
3. For a copy of the 11th General Programme of Work see URL: http://whqlibdoc.who.int/publications/2006/GPW_eng.pdf [accessed 2008 6 March].
4. For the complete text of the IHR(2005) see URL: http://www.who.int/gb/ebwha/pdf_files/WHA58/WHA58_3-en.pdf [accessed 2008 6 March].
5. Safe, Piped Water: Managing Microbial Water Quality in Piped Distribution Systems – A Review of Knowledge and Practices,2004