LEADER-WILLIAMS, N. The cost of conserving elephants. Pachyderm, [S. l.], v. 16, n. 1, p. 85–85, 1993. DOI: 10.69649/pachyderm.v16i1.767. Disponível em: https://pachydermjournal.org/index.php/pachyderm/article/view/767. Acesso em: 27 apr. 2026.