Arzamendia, V., Cisneros-Heredia, D.F., Fitzgerald, L., Flores-Villela, O., Gagliardi, G., Giraudo, A., Ines Hladki, A., Köhler, G., Lee, J., Nogueira, C. de C., Ramírez Pinilla, M., Renjifo, J., Scrocchi, G., Urbina, N., Williams, J., Wilson, L.D. & Murphy, J.: Boa constrictorIUCN Red List of Threatened Species. Version 2022-1. 2021. International Union for Conservation of Nature, IUCN, Iucnredlist.org. Viitattu 9.8.2022. (englanniksi)
