VIGNE, L. A tale of two African cities–Ivory trade comparisons in Khartoum/Omdurman and Addis Ababa. Pachyderm, [S. l.], v. 58, p. 88–96, 2017. Disponível em: https://pachydermjournal.org/index.php/pachyderm/article/view/421. Acesso em: 25 apr. 2024.