2
1
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System Approaches for Agricultural Development
Frits Penning De Vries
Primary Author
Paul Teng
Primary Author
Klaas Metselaar
Primary Author
mixed material
0792318811
Thailand
Kluwer Academic
1991
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SARP Research Proceedings Nitrogen Manajemen Studies in irrigated rice
H.F.M. Ten Berge
Primary Author
P.S.Teng
Primary Author
mixed material
wegeningen
AB-DLO
1995
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