Farming Systems Research: an Evolutionary Approach to Implementation

نویسندگان

  • Edward Heinemann
  • Stephen D. Biggs
چکیده

) the utilisation of the other NFS data: on net household income (which, although reducing the usable sample of Survey households by about 40070, may provide a better guide to pure income effects); on the age (particularly of children) and sex of the household members; on the occupation and industry of earners; on price movements during the calendar year; and on the extent of free supplies available to the household;

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تاریخ انتشار 2008