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Community Based Resource Management, Biochemical Oxygen Demand, Chemical Oxygen Demand, Surface Water Environment, Self-management Team, Tam Giang Lagoon.
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ecotourism, community approach, Bai Tu Long, National Park, Van Don.
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karst, mogot, caves, karst relief, speleothern
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To Lich river, sewage, IPC (Intergrated Pollution Control) software.
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