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  1. 1
    Organic Farming and Sustainable Agriculture
    af Gupta, H.M
    Udgivet 2005
    Printed Book
  2. 2
    Global development of organic agriculture:challenges and prospects.
    Printed Book
  3. 3
    Organic Agriculture practices in Coconut based homesteads in Thiruvananthapuram District
    af Jayawardana, J.K.J.P
    Udgivet 2007
    Printed Book
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