00343pab a2200121 454500008004000000100001700040245007800057260000900135300001500144362001200159650001600171773003400187180718b2013   xxu||||| |||| 00| 0 eng d  aNawn, Nandan  aUsing cost of cultivation survey data: Changing challenges for researches  c2013  ap.139-147.  a29 June  aCultivation  aEconomic and Political Weekly