Lockwood, G. & Gyamfi, M.M.O. 1979
The CRIG cocoa germplasm collection with notes on codes used in the breeding programme at Tafo and elsewhere. Technical Bulletin, No. 10, Cocoa Research Institute, Tafo, Ghana. pp. 62.
Ghana - CRIG Datafile: PROGENY_ Catalogue of the material held in Ghana together with notes on the origins and usages of code names.