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- 1 Plant ecology -- Lampang
- 1 Plant-atmosphere relationship
- 1 Soil -- Heavy metal content -- La...
- 1 Soil pollution -- Chiang Mai. Mae...
- 1 Soil pollution -- Lampang
- 1 Soils -- Heavy metal content -- C...
- 1 Water -- Pollution
- 1 Water -- Pollution -- Measurement.
- 1 Water quality -- Measurnment.
- 1 Water quality bioassay.
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