Submitted on: 26 November 2005.
Revised on: 16 March 2006.
Accepted on: 16 April 2006.
___________________Journal of Agricultural & Food Information
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Submitted on: 23 July 2015.
Revised on: 12 September 2015.
Accepted on: 27 September 2015.
___________________Journal of Agricultural & Food Information
Submitted on: 11 October 2002.
Revised on: 11 January 2003.
Accepted on: 17 February 2003.
___________________Journal of Agricultural & Food Information
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