Collette, B.B., Boustany, A., Fox, W., Graves, J., Juan Jorda, M. & Restrepo, V.: Thunnus maccoyiiIUCN Red List of Threatened Species. Version 2021-2. 2021. International Union for Conservation of Nature, IUCN, Iucnredlist.org. Viitattu 4.9.2021. (englanniksi)
