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1
Impact of field education and training input on agricultural productivity
出版 1992
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Instability in groundnut production and change in system of sharecropping in the context of new technology in Orissa
出版 1994
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3
A study on effects of new technology on groundnut production in Orissa
由 Jena, S., Jena, S., Mitra, A. K.
出版 1990
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