HUTCHESON, Alexander. Notice of the Discovery of the Remains of an Earth-house at Barnhill, Perth. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 38, p. 541–547, 1904. DOI: 10.9750/PSAS.038.541.547. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/6990. Acesso em: 24 apr. 2024.