PAYNE, J.; AHMAD, A.; ZAINUDDIN, Z. Urgent appraisal needed of Sumatran rhino conservation efforts. Pachyderm, [S. l.], v. 60, p. 138–141, 2019. DOI: 10.69649/pachyderm.v60i.50. Disponível em: https://pachydermjournal.org/index.php/pachyderm/article/view/50. Acesso em: 24 apr. 2026.