1. Alder, D., 1990. GHAFOSIM: A projection system for natural forest growth and yield in Ghana. Consultancy report to Ministry of Lands and Natural Resources, Ghana, pp. 114.
2. Alder, D., 1995. Growth Modelling for Mixed Tropical Forests. Department of Plant Sciences, University of Oxford, Tropical Forestry Paper 30, p. 231.
3. Alder, D., 1997. User’s Guide for SIRENA II - A simulation model for the management of natural tropical forests. CODEFORSA/DFID Integrated Forest Management Project, Internal Report, p. 45.
4. Alder, D., 1998a. PINFORM: A growth model for lowland tropical forest in Papua New Guinea. International Tropical Timber Organisation, Yokohama. Project PD 162/91 Internal Report. pp. 49.
5. Alder, D., 1998b. The ITTO permanent sample plots in Papua New Guinea: Some results of analysis. Paper presented to ITTO workshop on Permanent sample plots and growth models for natural forest management in Papua New Guinea, held at the Forest Research Institute, Lae 10th–13th Nov 1998, pp. 16.