| Abstract: |
English summary on page 41 as follows: In South East Asian Neolithic, a centre of early agriculture was formes with wet rice which has gradually developed into main food plants. From the analysic of technical process expressed by rich cutting tools with sharp edges and logi cal forms, digging tools increasing in number, vestiges of vegetals ever known so far as well as valley living, one can see that Hoabinians were on the threshold of productive economy. Reaching out for the border of plain, well-ventilated and sapicious area but the earth was full of marshes, Da But people mainly oriented to push up the growing wet vegeta oweing to the development of productive technique.
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