RALSTON, Ian; SMITH, John S. High altitude settlement on Ben Griam Beg, Sutherland. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 113, p. 636–638, 1984. DOI: 10.9750/PSAS.113.636.638. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/9143. Acesso em: 3 may. 2024.