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  1. 1
    Extension education
    Printed Book
  2. 2
    Extension education for human resource development
    Printed Book
  3. 3
    Extension education
    由 Nayak, A K, Uttam Kumar Singh
    出版 1997
    Printed Book
  4. 4
    Development work among rural women : a guide book /
    由 Nimbkar, Krishnabai
    出版 1958
    Printed Book
  5. 5
    Rural extension handbook
    由 M S Vasishtha, Singh Vijender
    出版 2007
    Printed Book
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