CHRISTISON, David. The Forts of Kilmartin, Kilmichael Glassary, and North Knapdale, Argyle. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 38, p. 205–251, 1904. DOI: 10.9750/PSAS.038.205.251. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/6977. Acesso em: 23 apr. 2024.