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Statistics on cocoa production, exports, prices and distribution of planting materials, Cocoa Board of PNG, 9 Mar 1990
Rufina Peter (Economics Division), Papua New Guinea Cocoa Market Report January – December 1994, Madang, Cocoa Board of PNG
Rufina Peter (Economics Division), Papua New Guinea Cocoa Market Report January – March 1996, Rabaul, Cocoa Board of PNG, bound with Special feature, P. Jollands, Root disease in cocoa, Kerevat, PNG Cocoa & Coconut Research Institute, CCRI Information Bulletin No.8, n.d.
Rufina Peter (Economics Division), Papua New Guinea Cocoa Market Report October – December 1996, Madang, Cocoa Board of PNG, bound with Special Feature, C. Prior, Bark canker of cocoa, Kerevat, PNG Cocoa & Coconut Research Institute, CCRI Information Bulletin No.11, n.d.
PNG Cocoa & Coconut Research Institute, First Annual Research Report of the PNG Cocoa & Coconut Research Institute 1986/1987, Tavilo Research Centre, CCRI, Nov 1987
PNG Cocoa & Coconut Research Institute, Second Annual Research Report of the PNG Cocoa & Coconut Research Institute 1987/1988 [1 May 1987-30 Apr 1988], Tavilo Research Centre, CCRI, Aug 1988
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