SIMPSON, W Douglas. Excavations at the Doune of Invernochty. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 70, p. 170–181, 1936. DOI: 10.9750/PSAS.070.170.181. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/7974. Acesso em: 26 apr. 2024.