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Topic
- Watersheds 98
- Groundwater 45
- Irrigation 31
- Agriculture 27
- Aquifers 26
- Hydrology 24
- Water quality 23
- Precipitation (Meteorology) 16
- Climate 12
- Soils 11
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Publisher
- United States. Joint Publications Research Service 12
- Associates for Middle East Research 7
- Food and Agriculture Organization of the United Nations 6
- United Nations 6
- Unesco 4
- World Bank 4
- Jāmiʻah al-Urdunīyah 3
- Society for International Development. Israel Chapter 3
- United States. Army. Corps of Engineers 3
- Jāmiʻah al-Urdunīyah. Markaz al-Buḥūth wa-al-Dirāsāt al-Māʼīyah 2
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Decade
- 1980-1989 98