Mohapatra, P., Giri, V., Suraj, M., Das, A., Srinivasulu, C., Kandambi, D. & Ukuwela, K.: Bungarus caeruleusIUCN Red List of Threatened Species. Version 2021-3. 2021. International Union for Conservation of Nature, IUCN, Iucnredlist.org. Viitattu 4.1.2022. (englanniksi)