Declining Orangutans Population in the Unprotected Forest of Batang Toru.
Tropical Life Sciences Research,
[S. l.], v. 29, n. 2, p. 77–87, 2018.
DOI: 10.21315/tlsr2018.29.2.6. Disponível em: https://ejournal.usm.my/tlsr/article/view/tlsr_vol29-no-2-2018_6.. Acesso em: 7 jan. 2025.