Scott Yarbo & Eric Omuru (Economics Division), Papua New Guinea Cocoa Market Report October – December 1992, Rabaul, Cocoa Board of PNG, bound with Special Feature, J.J. Dennis, G-Y Tan & C. Prior, Vascular-streak dieback disease of cocoa, Rabaul, PNG Cocoa & Coconut Research Institute and Cocoa Quality Improvement Project, CCRI Information Bulletin No.1, Nov 1991.
Cocoa Board of Papua New Guinea
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.
Cocoa Board of Papua New Guinea
Rufina Peter (Economics Division), Papua New Guinea Cocoa Market Report October – December 1995, Rabaul, Cocoa Board of PNG, bound with Special Feature, J.B. O’Donohue, In-filling cocoa stands, Kerevat, PNG Cocoa & Coconut Research Institute, CCRI Information Bulletin No.7, Jul 1981.
Cocoa Board of Papua New Guinea
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.
Cocoa Board of Papua New Guinea
Rufina Peter (Economics Division), Papua New Guinea Cocoa Market Report July – September 1995, Madang, Cocoa Board of PNG, bound with Special Feature, G. Ling, Warning! Do not use seed from hybrid cocoa tres for planting, Rabaul, PNG Cocoa & Coconut Research Institute, CCRI Information Bulletin No.6, Feb 1986.
Cocoa Board of Papua New Guinea