Newhills Cross, Aberdeenshire. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 60, p. 269–273, 1926. DOI: 10.9750/PSAS.060.269.273. Disponível em: https://soas-test.journals.ed.ac.uk/index.php/psas/article/view/7674. Acesso em: 28 oct. 2025.