Santoso, N., Sutopo, Meo, L.E., Fauziah, N.N. and Diva, A.M. 2023. PRELIMINARY STUDY: FEEDING ECOLOGY AND DAILY ACTIVITY OF THREE COLORED LANGUR (Presbytis chrysomelas ssp cruciger Thomas, 1892) IN DANAU SENTARUM NATIONAL PARK. BIOTROPIA. 30, 2 (Aug. 2023), 206–219. DOI:https://doi.org/10.11598/btb.2023.30.2.1850.