1. Donald, R G. A capsid experiment in the Western region of Nigeria. Paper presented at: Rep. Cocoa Conference; 1957. London, UK.
2. Ikemefuna, P N. Pesticide importation and consumption in Nigeria. Paper presented at: The Pesticide Training Workshop on Environmentally Safe and Effective Control of Pests. UNIFECS/FEPA; 1998. Lagos, Nigeria.