Harvest, Vol.9, Nos.3-4, 1983, special issue on Cocoa production
Government of PNG, White Paper on Agriculture: National Policies for the Development of the Agricultural Sub-Sector, Waigani, Sep 1989
G.Y. Tan, Report on the 10th International Cocoa Research Conference, Santo Dominigo, Re[public of Dominicana, 17-23 May, 1987, and the New Cocoa Germplasm introduced from Miami Subtropical Research Station, c. May 1987, CCRI
G. Yong Tan, ‘SG 2’ Cocoa Hybrid, n.d.
G. Yong Tan (Principal Plant Breeder, PNG Cocoa and Coconut Research Institute), Annual Report Plant Breeeding Section, September 1986, Cocoa Board of PNG, Sep 1986, 27pp., bound, with Plant Breeding Working Program for 1986-87
G. Yong Tan (Principal Plant Breeder), ACIAR Project no.8442, Coconut improvement Project. Work programme proposals for coconut breeding and tissue culture, Report No.1, Nov 1986, PNG Cocoa & Coconut Research Institute
G. Anthony, G.Y. Kauzi, D.W. Loh & J.R. Anderson, Returns to Cocoa Research 1965 to 1980 in Papua New Guinea, ACIAR Project Papers No.9, Sep 1988
Final Draft Cocoa Working Group Report to Cabinet, 30th August 1989
Field Pocket Book on Hybid Cocoa: a pocket guide for cocoa growers and field workers, Pocket Book No.2, Konedobu, Dept of Agricutture and Livestock, revised edition, May 1992
E.S.C. Smith (AES, Keravat), Bibliography of Cocoa in Papua New Guinea, PNG Dept of Primary Industry, Sep 1982
