RYCKMANS, Jacques. Some Recent Views on the Public Institutions of Saba (Ancient South Arabia). Proceedings of the Seminar for Arabian Studies, [S. l.], v. 1, p. 24–28, 1971. Disponível em: https://www.archaeopresspublishing.com/ojs/index.php/PSAS/article/view/359. Acesso em: 29 dec. 2025.