Ashton, P. S. 1963. A note on the formation of a rational classification of floristic and structural variation within the Mixed Diperocarp Forests of Sarawak and Brunei for forestry and land use planning. Pp. 185–197 in Proceedings of Symposium on Humid Tropics Vegetation. UNESCO, Paris.
Ashton, P. S. 1964a. Ecological studies in the Mixed Dipterocarp Forests of Brunei State. Oxford Forest Memoir 25, Oxford University Press, Oxford.
Ashton, P. S. 1964b. Manual of dipterocarp trees in Brunei State. Oxford University Press, Oxford.
Ashton, P. S. 1968. Manual of dipterocarp trees of Brunei State and Sarawak - supplement. Government Printer, Kuching.
Ashton, P. S. 1969. Speciation among tropical trees: some deductions in the light of recent evidence. Biological Journal of Linnaean Society 1:155–196.
Ashton, P. S. 1973. Report on research undertaken during the years 1963–1967 on the ecology of Mixed Dipterocarp Forest in Sarawak. University of Aberdeen and Ministry of Overseas Development, London.
Ashton, P. S. 1976. Mixed Dipterocarp Forest and its variation with habitat in the Malayan lowlands: a re-evaluation of Pasoh. Malayan Forester 39:56–72.
Ashton, P. S. 1978. Flora Malesiana Precursores: Dipterocarpaceae. Gardens Bulletin Singapore 31:5–48.
Ashton, P. S. 1981. The need for information regarding tree age and growth in tropical forests. Pp. 3–6 in H.Bormann, F. Bormann, F. & G., Berlyn (eds). Age and growth rates in tropical trees. School of Forestry and Environmental Studies Bulletin 94, Yale University, Ithaca.
Ashton, P. S. 1982. Dipterocarpaceae. Flora Malesiana 9:237–552.
Austin, M. P., Greig-Smith, P. & Ashton, P. S. 1972. The application of quantitative methods to vegetation survey. III. A re-examination of rain forest data from Brunei. Journal of Ecology 60:305–324.
Bailey, J. M. 1967. Chemical changes in a Sarawak soil after fertilisation and crop growth. Plant and Soil 27:33–52.
Baillie, I. C. 1976. Further studies on drought in Sarawak, East Malaysia. Journal of Tropical Geography 43:20–29.
Baillie, I. C. & Ahmed, M. I. 1984. The variability of Red Yellow Podzolic soils under Mixed Dipterocarp Forest in Sarawak, Malaysia. Malaysian Journal of Tropical Geography 9:1–13.
Bross, I. D. J. 1958. How to use Ridit analysis. Biometrics 14:18–38.
Brown, M. B. & Forsythe, A. B. 1974. The small sample behavior of some statistics which test the equality of several means. Technometrics 16:129–132.
Cattell, R. B. 1966. The scree test for the number of factors. Multivariate Behavioral Research 1:245–276.
Child, D. 1970. The essentials of factor analysis. Holt, Rinehart & Winston, London.
J.Dixon, W. Dixon, W. (ed.). 1973. Biomedical computer programs. University of California Press, Los Angeles.
Fedorov, A. 1966. The structure of the tropical rain forest and speciation in the humid tropics. Journal of Ecology 54:1–11.
Fidp, . 1974. An inventory of the Mixed Dipterocarp Forest of Sarawak 1969–1972. Technical Report 2, Forest Industries Development Project, FAO/UNDP, Kuala Lumpur.
Fox, J. E. D. 1971. The natural vegetation of Sabah and the natural regeneration of the dipterocarp forests. PhD thesis, University College of North Wales, Bangor.
Garraway, M. O. & Evans, R. C. 1984. Fungal nutrition and physiology. J. Wiley & Sons, New York.
Harman, H. H. 1976. Modern factor analysis (3rd edition). University of Chicago Press, Chicago.
Janos, D. P. 1983. Tropical mycorrhizas, nutrient cycles and plant growth. Pp. 327–345 in J.Sutton, S. Sutton, S., C.Chadwick, A. Chadwick, A. & C.Whitmore, T. Whitmore, T. (eds). Tropical rain forest: ecology and management. Black-wells, Oxford.
Jennrich, R. I. & Sampson, P. F. 1966. Rotation for simple loadings. Psychometrika 31:313–323.
Jordan, C. F. & Herrera, R. 1981. Tropical rain forests: are nutrients really critical? American Naturalist 117:167–180.
Juo, A. S. R. 1981. Chemical characteristics. Pp. 51–79 in J.Greenland, D. Greenland, D. (ed.). Characterisation of soils. Oxford University Press, Oxford.
Krebs, J. E. 1974. Chemical characteristics of the surface soil of three forests in San Carlos, Costa Rica. Turrialba 24:382–386.
Lee, P. C. 1967. Ecological studies on Dryobalanops aromatica Gaertn, F. Unpublished PhD thesis, University of Malaya, Kuala Lumpur.
Leichti, P., Roe, F. W. & Haile, N. S. 1960. The geology of Sarawak, Brunei and the western part of North Borneo. Bulletin 3. British Borneo Geological Survey, Kuching.
Ng, F. S. P. 1981. Vegetative and reproductive phenology of dipterocarps. Malaysian Forester 44:197–221.
Pennell, R. 1972. Routinely computable confidence intervals for factor loadings using the ‘jack-knife’. British Journal of Mathematical and Statistical Psychology 25:107–114.
Poore, M. E. D. 1968. Studies in the Malaysian rain forest. I. The forest on Triassic sediments in the Jengka Forest Reserve. Journal of Ecology 56:143–196.
Prescott, P. 1974. Normalising transformations of Student's ‘t’ distribution. Biometrika 61:177–180.
Shamshuddin, M. N. 1979. Mycorrhizas of tropical forest trees. P. 173 in I.Furtado, J. Furtado, J. (ed.). Abstracts of Proceedings of Fifth International Symposium on Tropical Ecology. University of Malaya, Kuala Lumpur.
Sim, E. S. 1965. Methods of analysis for agricultural material. Department of Agriculture, Kuching, Sarawak
Singh, K. D. 1974. Spatial variation patterns in the tropical rain forest. Unasylva 26:18–23.
Singh, K. G. 1966. Ecotrophic mycorrhiza in equatorial rain forests. Malayan Forester 29:13–18.
Strout, A. M. 1983. How productive are the soils of Java? Bulletin of Indonesian Economic Studies 19:32–52.
Tie, Y. L. 1982. Soil classification in Sarawak. Technical Paper 6, Soils Division, Department of Agriculture, Kuching.
Wallace, D. L. 1959. Bounds on normal approximation to Student's and Chi Square distributions. Annals of Mathematical Statistics 30:1121–1130.
Webb, L. J., Dale, M. B., Hamilton, L. S., Kikkawa, J. & Tracey, J. G. 1980. Assessment of site potential from vegetation and landscape features in the wet tropics. Pp. 15–31 in IFurtado, J. Furtado, J. (ed.). Tropical ecology and development. Proceedings of Vth International Symposium on Tropical Ecology. International Society for Tropical Ecology, Kuala Lumpur.
Webster, R. & Burgess, T. M. 1984. Sampling and bulking strategies for estimating soil properties in small regions. Journal of Soil Science 35:127–140.
Whitmore, T. C. 1973. Frequency and habitat of tree species in the rain forest of Ulu Kelantan. Gardens Bulletin, Singapore 26:195–210.
Whitmore, T. C. 1984. Tropical rain forests of the Far East. 2nd edition. Oxford University Press Oxford.
Wilk, M. B. & Shapiro, S. S. 1968. The joint assessment of normality of several independent samples. Technometrics 10:825–839.
Wong, Y. K. & Whitmore, T. C. (1970). On the influence of soil properties on species distribution in a Malayan Lowland Dipterocarp rain forest. Malayan Forester 33:42–54.
Wyatt-Smith, J. 1960. Stems per acre and topography. Malayan Forester 23:57–58.