1. 19.03.1988 Mountain agriculture Land degradation in Papua New Guinea Sloping agricultural land technology Land use systems in marginal highlands Community forestry Cassava planting Pest management
  2. 01.01.1991 In addition to providing an historical perspective of the development of new kinds of forestry activities, this review contributes a forward-looking assessment of constraints and opportunities for strengthening participation in all forestry activities.
  3. This book collect articles from around the world that discuss forest, farm, and community tree research.