ILEIA Newsletter - LEISA Magazine - Farming Matters FM 1988 ILEIA Newsletter Vol 4 #1
ตีพิมพ์แล้ว: 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