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
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 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 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
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