BirdLife International. 2001. Threatened birds of Asia: the BirdLife International Red Data Book. BirdLife International, Cambridge, U.K.
Orenstein, R.; Wong, A.; Abghani, N.; Bakewell, D.; Eaton, J.; Teck, Y. S.; Li, Y. D. 2010. Sarawak - a neglected birding destination in Malaysia. BirdingASIA 13: 30-41.
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Recommended citation
BirdLife International (2022) Species factsheet: Batrachostomus harterti. Downloaded from
http://www.birdlife.org on 29/06/2022.
Recommended citation for factsheets for more than one species: BirdLife International (2022) IUCN Red List for birds. Downloaded from
http://www.birdlife.org on 29/06/2022.