CRUDEN, Stewart. Arbroath Abbey. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 88, p. 94–99, 1956. DOI: 10.9750/PSAS.088.94.99. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/8462. Acesso em: 3 may. 2024.