Applied biology beyond the year 2000: proceedings of the 3rd Symposium of Malaysian Society of Applied Biology: Malacca (Malaysia), 28-29 May 1994, p. 75-78
Plant protection in the tropics: proceedings of the 4th International Conference on Plant Protection in the Tropics: Kuala Lumpur (Malaysia), 28-31 Mar 1994, p. 464
Applied biology beyond the year 2000: proceedings of the 3rd Symposium of Malaysian Society of Applied Biology: Malacca (Malaysia), 28-29 May 1994, p. 83-85