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Añadir al portapapeles E.D. & F Man Cocoa Ltd, Research Department, Cocoa Market Report No.349, 26 May 1994, London

Añadir al portapapeles Rufina Peter (Economics Division), Papua New Guinea Cocoa Market Report January – December 1994, Madang, Cocoa Board of PNG

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Añadir al portapapeles Rufina Peter (Economics Division), Papua New Guinea Cocoa Market Report January – March 1995, Rabaul, Cocoa Board of PNG

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Añadir al portapapeles Cocoa Statistics of Papua New Guinea, Rabaul, Cocoa Board of PNG, Apr 1996

Añadir al portapapeles Rufina Peter (Economics Division), Papua New Guinea Cocoa Market Report April – June 1996, Madang, Cocoa Board of PNG, bound with Special feature, A. MacGregor, Thread blight disease of cocoa, Kerevat, PNG Cocoa & Coconut Research Institute, CCRI Information Bulletin No.9, n.d.

Añadir al portapapeles Rufina Peter (Economics Division), Papua New Guinea Cocoa Market Report July – September 1996, Madang, Cocoa Board of PNG, bound with Special Feature, J.J.C. Dennis, Additional staregy for phytophthora pod rot control for small holders, Kerevat, PNG Cocoa & Coconut Research Institute, CCRI Information Bulletin No.10, n.d.