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Wijkstrom, Ulf N. (2009) The Use of wild fish as aquaculture feed and its effects on income and food for the poor and the undernourished. Food and Agricultural Organisation (FAO), Rome.
New, Michael B. and Wijkstrom, Ulf N. (2002) Use of fishmeal and fish oil in aquafeeds further thoughts on the fishmeal trap. FAO Fisheries Circular No.975 . Food and Agricultural Organisation (FAO), Rome. ISBN 0429-9329
Jia, Jiansan and Wijkstrom, Ulf N. and Subasinghe, Rohana and Barg, Uwe (2000) Aquaculture development beyond 2000: Global prospects. Aquaculture Asia, Vol.5 (4). pp. 5-7. ISSN 0859-600X