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Subject
- Tribal government--Arab countries--History1
- Urban density1
- Urban development5
- Urban health1
- Urban planning2
- Urban planning and environment2
- Vegetation classification1
- Vegetation mapping3
- Voting9
- Waste control2
- Waste disposal sites1
- Water2
- Water transfer1
- Water treatment plants3
- Wetlands1
- Wilderness areas1
- Zoning4
- Zoning law4