Bourke, R. M., Harwood, T., Food and agriculture in Papua New Guinea, ANU E Press, Canberra, Australia, 2009.

Tropical palms, Non-Wood Forest Products No. 10, FAO, Rome, Italy, 1995.

Tropical root and tuber crops – Production, perspectives and future prospects, FAO Plant Production & Protection Paper No. 126, FAO, Rome, Italy, 1994.

Root and tuber crops, plantains and bananas in developing countries – challenges and opportunities, FAO Plant Production & Protection Paper No. 87, FAO, Rome, Italy, 1988.

Williams, C. N., Chew, W. Y., Tree and field crops of the wetter regions of the tropics, Longman, London, UK, 1980.