- AU PMB DOC 538-70
- Stuk
- Mar 1993
Cocoa Board of Papua New Guinea
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Cocoa Board of Papua New Guinea
Perkins, John and Clarke, Trevor
Perkins, John and Clarke, Trevor
Bleeker, P. and Freyne, D.F.
Arthur Stevenson, ‘Cocoa Outlook’, Futures Focus, Vol.2, No.3, 13 Mar 1989.
Stevenson, Arthur
Harvest, Vol.9, Nos.3-4, 1983, special issue on Cocoa production