STILES, D.; MARTIN, E. Status and trends of the ivory trade in Africa, 1989-1999. Pachyderm, [S. l.], v. 30, n. 1, p. 24–36, 2001. Disponível em: https://pachydermjournal.org/index.php/pachyderm/article/view/1035. Acesso em: 22 jul. 2024.