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web.archive.org
Friday, J. B.; Okano, Dana (April 2006). "Cordia subcordata (kou)"(PDF). Species Profiles for Pacific Island Agroforestry. The Traditional Tree Initiative. Archived(PDF) from the original on 16 January 2009. Retrieved 21 September 2009.
Allen, James A. (1 January 2003). "Cordia subcordata Lam". Tropical Tree Seed Manual. Reforestation, Nurseries & Genetics Resources. Archived from the original on 16 January 2009. Retrieved 24 February 2009.
"Native plants of the Marshalls". Republic of the Marshall Islands Biodiversity Clearing House Mechanism. RMI Office of Environmental Planning and Policy Coordination. 2 October 2008. Archived from the original on 19 June 2015. Retrieved 7 September 2019.