This paper was also presented at the Agribusiness - Primary Concerns seminar series held in Toowoomba on 11 May 2004, Surfers Paradise on 12 May 2004, Mooloolaba on 13 May 2004, Mackay on 18 May 2004, Townsville on 19 May 2004 and Cairns on 20 May 2004.
maintenance