Atmoko, T. et al. 2021. Populasi dan sebaran bekantan (Nasalis larvatus) di Delta Berau. Jurnal Penelitian Kehutanan Wallacea. 10, 1 (Mar. 2021), 11–23. DOI:https://doi.org/10.18330/jwallacea.2021.vol10iss1pp11-23.