Proceedings 4th Malaysian International Cocoa Conference: Sustainable Cocoa Economy Through Increase in Productivity, Efficiency and Quality: Kuala Lumpur (Malaysia), 18-19 July 2005, p. 203-208
Proceedings of the 3rd International Conference on Plant Protection in the Tropics: volume VI, Malaysian Plant Protection Society (Malaysia): Pahang (Malaysia), 20-23 Mar 1990, p. 58-61