RITCHIE, J N Graham; THORNBER, Iain. Cairn 3, Acharn, Morvern, Argyll. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 118, p. 95–98, 1989. DOI: 10.9750/PSAS.118.95.98. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/9326. Acesso em: 14 jul. 2024.