Sustainable agriculture and natural resource management in India's semi-arid tropics.
Keyword(s):
Keyword(s):
2011 ◽
pp. 927-934
Keyword(s):
1997 ◽
Vol 19
(3)
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pp. 20-25
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Keyword(s):
2008 ◽
Vol 44
(2)
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pp. 235-256
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