BARNES, R. Forest elephant surveys in Central Africa. Pachyderm, [S. l.], v. 12, n. 1, p. 46–46, 1989. DOI: 10.69649/pachyderm.v12i1.693. Disponível em: https://pachydermjournal.org/index.php/pachyderm/article/view/693. Acesso em: 28 apr. 2026.