Topic
- Dams 16
- Yarmuk River 16
- Health 14
- Canals 13
- Water--Storage 13
- Water-supply 13
- Tiberias, Lake (Israel) 12
- Armistices 11
- Sanitation 11
- Sewage 11
- Saline water conversion 10
- Developing countries 9
- Bibliography 8
- Industries 7
- Peace 7
- Watersheds 7
- Pipelines 6
- Tiberias (Israel) 6
- Wells 6
- Aquifers 5