LAGROT, I.; LAGROT, J.-F.; BOUR, P. Probable extinction of the western black rhino, Diceros bicornis longipes: 2006 survey in northern Cameroon. Pachyderm, [S. l.], v. 43, p. 19–28, 2007. Disponível em: https://pachydermjournal.org/index.php/pachyderm/article/view/123. Acesso em: 8 may. 2024.