Purba, Erisdo Ariweis, et al. “Karakteristik Sarang Orangutan Kalimantan (Pongo Pygmaeus Wurmbii) Di Hutan Rawa Gambut CIMTROP Universitas Palangka Raya Kalimantan Tengah”. Journal of Biotropical Research and Nature Technology , vol. 3, no. 1, Nov. 2024, pp. 53-60, doi:10.52850/borneo.v3i1.16737.