| AfDB | African Development Bank
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| BGS | British Geological Survey
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| CLTS | Community-Led Total Sanitation
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| DFID | Department for International Development
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| EUWI | European Union Water Initiative
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| EUWF | European Union Water Facility
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| GWP | Global Water Partnership
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| ICE | Institution of Civil Engineers
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| IDC | International Development Committee
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| IDS | Institute of Development Studies
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| IFIs | International Financial Institutions
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| IIED | International Institute for Environment and Development
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| IMF | International Monetary Fund
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| IWRM | Integrated Water Resources Management
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| MDG | Millennium Development Goal
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| NAO | National Audit Office
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| NBI | Nile Basin Initiative
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| NEWAH | Nepal Water for Health
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| NGO | Non-Governmental Organisation
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| ODI | Overseas Development Institute
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| OECD | Organisation for Economic Co-operation and Development
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| PPIAF | Public Private Infrastructure Advisory Facility
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| PRBS | Poverty Reduction Budget Support
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| PRSP | Poverty Reduction Strategy Paper
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| PUP | Public-Public Partnership
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| RWSSI | Rural Water Supply and Sanitation Initiative
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| UNDP | United Nations Development Programme
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| UNICEF | The United Nations Children's Fund
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| WHO | World Health Organisation
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| WRM | Water Resources Management
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| WSP | Water and Sanitation Programme
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| WSUP | Water and Sanitation for the Urban Poor
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