1. Allen S E, Grimshaw H M, Parkinson J A and Quarmby C 1974 Chemical Analysis of Ecological Materials. Blackwell Scientific Publications, Oxford. 368 p.
2. Anderson J M and Ingram J S I 1989 Tropical Soil Biology and Fertility: A Handbook of Methods. C.A.B. International, Wallingford, UK. 171 p.
3. Anderson J M and Swift M J 1983 Decomposition in tropical forests. In Tropical Rain Forest: Ecology and Management. Eds. S LSutton, T CWhitmore and A CChadwick. pp 287?309. Blackwell Scientific Publications, Oxford.
4. Benoit R E and Starkey R L 1968a Inhibition of decomposition of cellulose and some other carbohydrates by tannin. Soil Science 105, 291?296.
5. Benoit R E and Starkey R L 1968b Enzyme inactivation as a factor in the inhibition of decomposition of organic matter by tannins. Soil Science 105, 203?208.