JOHN, A. H. Individual Behavior Of Female Sumatran Orangutan (Pongo abelii L.) With Enclosure Management System In Siantar Zoo. International Journal of Ecophysiology, [S. l.], v. 3, n. 2, p. 173–189, 2022. DOI: 10.32734/ijoep.v3i2.10094. Disponível em: https://talenta.usu.ac.id/ijoep/article/view/10094. Acesso em: 14 aug. 2025.