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Topic
- Irrigation 13
- Hydrology 11
- Agriculture 10
- Watersheds 9
- Groundwater 7
- Precipitation (Meteorology) 6
- Soils 6
- Water-supply 5
- Water consumption 4
- Water quality 4
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Publisher
- United Nations Development Programme 25
- Food and Agriculture Organization of the United Nations 16
- Lebanon. Maṣlaḥah al-Waṭanīyah li-Nahr al-Līṭānī 8
- World Bank 7
Collection
- The Middle East Water Collection 25
Institution
- Oregon State University 25