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    Sweetpotato in the Farming and Food Systems of Uganda: A Farm Survey Report by Bashaasha, B., Mwanga, R.O.M., Ocitti, C., Ewell, P.T.

    Published 1995
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    Libro
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    Sweetpotato in Tanzanian Farming and Food Systems: Implications for Research by Kapinga, R.E., Ewell, P.T., Jeremiah, S.C., Kileo, R.

    Published 1995
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    Libro
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    Investigación socioeconómica para el manejo mejorado de plagas. by Ewell, P.T., Fano Rodríguez, H.

    Published 2018
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    paper

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