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  1. 1

    The Philippine hybrid rice program a case for redesign and scaling down מאת David, Cristina C.

    יצא לאור 2007
    ספר

    The Philippine hybrid rice program a case for redesign and scaling down
  2. 2

    The Masagana/Margate system of planting rice a study of an agricultural innovation מאת Covar, Prospero R.

    יצא לאור 1960
    ספר

    The Masagana/Margate system of planting rice a study of an agricultural innovation

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