Proceedings of the Soil Science Conference of Malaysia 2007: Peat and Other Soil Factors in Crop Production: Sarawak (Malaysia), 17-19 Apr 2007, pp. 209-211
Proceedings of the Soil Science Conference of Malaysia 2007: Peat and Other Soil Factors in Crop Production: Sarawak (Malaysia), 17-19 Apr 2007, p. 345-348
Proceedings of the Soil Science Conference of Malaysia 2007: Peat and Other Soil Factors in Crop Production: Sarawak (Malaysia), 17-19 Apr 2007, p. 60-68