SANTOSA, Yanto; SIREGAR, Julius Paolo; RINALDI, Dones; RAHMAN, Dede Aulia. Faktor–Faktor Penentu Keberhasilan Pelepasliaran Orangutan Sumatera (Pongo Abelii) di Taman Nasional Bukit Tigapuluh. Jurnal Ilmu Pertanian Indonesia, [S. l.], v. 17, n. 3, p. 186–191, 2014. Disponível em: https://journal.ipb.ac.id/JIPI/article/view/8344. Acesso em: 19 mar. 2026.