Proceedings of the Soil Science Conference of Malaysia 2007: Peat and Other Soil Factors in Crop Production: Sarawak (Malaysia), 17-19 Apr 2007, p. 42-59
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. 143-145