ROOKMAAKER, K. A review of black rhino systematics proposed in Ungulate Taxonomy by Groves and Grubb (2011) and its implications for rhino conservation. Pachyderm, [S. l.], v. 50, p. 72–76, 2011. Disponível em: https://pachydermjournal.org/index.php/pachyderm/article/view/269. Acesso em: 6 may. 2024.