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- Riparian areas 3
- Economics 2
- Hydrology 2
- Politics and government 2
- Agriculture 1
- Aquifers 1
- Dams 1
- Demography 1
- Hussein, King of Jordan, 1935-1999 1
- Pipelines 1
- Population 1
- Reservoirs 1
- Water consumption 1
- Water-supply 1