FEACHAM, R W. Glenachan Rig Homestead, Cardon, Peeblesshire. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 92, p. 15–24, 1961. DOI: 10.9750/PSAS.092.15.24. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/8572. Acesso em: 20 apr. 2024.