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1
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3Digital revistaSCIELO
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4
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5by Marleen Belder, El- Abbas Doka Mohamed Ali;Land and Water Division
Published 1998Project bibliotecaFAO IT -
6Digital revistaSCIELO
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7by Zeng, S., Danbaro, G., Nano, W., Doka, S., Gerega, T., Hanotte, Olivier H., Han Jianlin
Published 2010-07-20Journal Article bibliotecaCGIAR -
8Digital revistaSCIELO
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10by Doka Mohamed Ali, E.-A., FAO, Rome (Italy). Land and Water Development Div. eng, Ministry of Agriculture and Irrigation, Sana'a (Yemen). Agricultural Research and Extension Authority eng
Published 1996Texto bibliotecaFAO IT