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Donor
- Naff, Thomas 45
Topic
- Water quality 45
- Water-supply 13
- Hydrology 12
- Irrigation 12
- Water--Purification 12
- Agriculture 11
- Economics 9
- Groundwater 8
- Bureaucracy 7
- Sewage 7
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Publisher
- Maktab al-Dirāsāt al-Lubnānīyah wa-al-ʻArabīyah 7
- Middle East Economic Digest Ltd. 6
- United States. Joint Publications Research Service 4
- British Broadcasting Corporation 3
- Unesco 2
- Arab Centre for the Studies of Arid Zones and Dry Lands 1
- Associates for Middle East Research 1
- Center for Economic, Financial and Social Research and Documentation 1
- Food and Agriculture Organization of the United Nations 1
- International Association of Hydrological Sciences 1
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