HORSBURGH, James. Notes of Cromlechs, Duns, Hut-Circles, Chambered Cairns, and other Remains, in the County of Sutherland. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 7, p. 271–279, 1867. DOI: 10.9750/PSAS.007.271.279. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/5333. Acesso em: 6 may. 2024.