JONES, D.; SEAL, U.; RYDER, O. Northern white rhinos in captivity. Pachyderm, [S. l.], v. 9, n. 1, p. 22–23, 1987. DOI: 10.69649/pachyderm.v9i1.656. Disponível em: https://pachydermjournal.org/index.php/pachyderm/article/view/656. Acesso em: 28 apr. 2026.