VIGNE, L.; MARTIN, E. Yemen stops being a major buyer of rhino horn. Pachyderm, [S. l.], v. 14, n. 1, p. 20–21, 1991. DOI: 10.69649/pachyderm.v14i1.715. Disponível em: https://pachydermjournal.org/index.php/pachyderm/article/view/715. Acesso em: 1 may. 2026.