MURRAY, Athol L; BURNETT, Charles J. The seals of the Scottish Court of Exchequer. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 123, p. 439–452, 1994. DOI: 10.9750/PSAS.123.439.452. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/9479. Acesso em: 27 may. 2024.