CALDER, Charles S T; MACDONALD, George. The Dwarfie Stane, Hoy, Orkney: Its period and purpose: With a note on ’Jo Ben’ and the Dwarfie Stane. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 70, p. 217–236, 1936. DOI: 10.9750/PSAS.070.217.236. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/7978. Acesso em: 20 apr. 2024.