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  1. 1

    The contribution of media towards farmers' adoption of new methods of farming : a case study of horticultural farmers in Mwea (Kenya) / מאת Zacharia, Malima

    יצא לאור 2011
    ספר
  2. 2

    The role of participatory communication in promoting organic farming in Bunda district Tanzania / מאת Mkangala, Christopher N.

    יצא לאור 2012
    ספר
  3. 3