MILLER, Peter. Notices of the Standing Stones of Alloa and Clackmannan. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 23, p. 153–164, 1889. DOI: 10.9750/PSAS.023.153.164. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/6324. Acesso em: 30 apr. 2024.