LITOROH, M. Aerial census of the Gash-Setit elephant population of Eritrea and Ethiopia. Pachyderm, [S. l.], v. 23, n. 1, p. 12–18, 1997. Disponível em: https://pachydermjournal.org/index.php/pachyderm/article/view/887. Acesso em: 3 jul. 2024.