Nauru Department of Commerce, Industry and Environment
Pacific Science 1991: 45 (4): 400-404
Nauru Department of Commerce, Industry and Environment
A thesis in partial fulfilment for a degree in Ecological Restoration at Victoria University of Wellington, New Zealand
PNG Conservation and Environment Protection Authority
Papua New Guinea Resource Information System Handbook
PNG Conservation and Environment Protection Authority
Research paper which provides overview of how villagers have intensified agricultural systems in Papua New Guinea