Brockelman and Geissmann (2008). Hylobates lar. 2014 IUCN Red List of Threatened Species. IUCN 2014. Retrieved on 14 August 2014.
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Groves, Colin. Wilson, D. E., and Reeder, D. M.. ed. Mammal Species of the World (3rd edition ed.). Johns Hopkins University Press. pp. 179-180. ISBN 0-801-88221-4
Brockelman and Geissmann (2008). Hylobates lar. 2014 IUCN Red List of Threatened Species. IUCN 2014. Retrieved on 14 August 2014.
