The Marchmont or St Ronan’s Arrow. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 125, p. 1175–1186, 1996. DOI: 10.9750/PSAS.125.1175.1186. Disponível em: https://soas-test.journals.ed.ac.uk/index.php/psas/article/view/9921. Acesso em: 1 oct. 2025.