↑ Agro-ecosystem Health Project. 1996. Agroecosystem health. University of Guelph, Guelph, Canada.
↑ Elske van de Fliert and Ann R. Braun. 1999. Farmer Field School for Integrated Crop Management of Sweetpotato. Field guides and Technical Manual. Bogor, Indonesia: International Potato Center. ISBN92-9060-216-3. "Archived copy". Diarkibkan daripada asal pada 2009-01-23. Dicapai 2008-12-09.
↑ Agroecosystem Management for Improved Human Health: Applying principles of integrated pest management to people. D. G. Peden. Published in New Directions in Animal Production Systems. Proceedings of the Annual Meeting of the Canadian Society of Animal Science, July 5–8, 1998, Vancouver, British Columbia, Canada. Edited by R. Blair, R. Rajamahendran, L.S. Stephens, M.Y. Yang. "Archived copy". Diarkibkan daripada asal pada 2008-05-01. Dicapai 2008-12-09.
