Cheyne, Susan, et al. “Behaviour of Wild, Non-Adult Bornean White-Bearded Gibbons (Hylobates Albibarbis) in Indonesia”. HAYATI Journal of Biosciences, vol. 32, no. 4, Mar. 2025, pp. 957-68, https://doi.org/10.4308/hjb.32.4.957-968.