Höing, A., Quinten, M. C., Indrawati, Y. M., Cheyne, S. M., & Waltert, M. (2013). Line Transect and Triangulation Surveys Provide Reliable Estimates of the Density of Kloss’ Gibbons (Hylobates klossii) on Siberut Island, Indonesia. Springer US.

Höing, Andrea, Marcel C. Quinten, Yohana Maria Indrawati, Susan M. Cheyne, και Matthias Waltert. Line Transect and Triangulation Surveys Provide Reliable Estimates of the Density of Kloss’ Gibbons (Hylobates Klossii) On Siberut Island, Indonesia. Springer US, 2013.

Höing, Andrea, et al. Line Transect and Triangulation Surveys Provide Reliable Estimates of the Density of Kloss’ Gibbons (Hylobates Klossii) On Siberut Island, Indonesia. Springer US, 2013.