MILLAR, Adam. Notes of the Discovery and Exploration of a Circular Fort on Dunbuie Hill, near Dumbarton. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 30, p. 291–308, 1896. DOI: 10.9750/PSAS.030.291.308. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/6628. Acesso em: 18 apr. 2024.