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  1. 1
    Contngent valuation method of pricing canal irrigation water:an exploratory study in kheda district of Gujarat
    por Ram Narayan,Ghatak
    Publicado em 1994
    Printed Book
  2. 2
    Economics of tube-well irrigation:acase study in haridol district of Uttar pradesh and kheda district of Gujarat
    por Ram Narayan,Ghatak
    Publicado em 1994
    Printed Book
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