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- นอกจากนี้ยังมี:
- English (en)
- ភាសាខ្មែរ (km)
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- 19-01-1998 Highland agriculture in northern Thailand is undergoing rapid changes, some for better, some for worse. These changes affect the livelihood of highland minority peoples as well as the livelihood of large rural and urban lowland Thai communities. They also affect the ecological balance of the rich...