Some aspects of agriculture and development in the Lake Toba area
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| Main Authors: | , , , , |
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| Format: | Texto biblioteca |
| Language: | |
| Published: |
Jakarta (Indonesia)
1989
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| Subjects: | CULTURAL METHODS, EROSION, SOIL CONSERVATION, SOIL TYPES, LAKES, MODE DE CULTURE, CONSERVATION DES SOLS, METODOS DE CULTIVO, CONSERVACION DE SUELOS, TYPE DE SOL, LAC, TIPOS DE SUELOS, LAGOS, |
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