PIGGOTT, Stuart. Notes: (9) A Tripartite Disc Wheel from Blair Drummond, Perthshire. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 90, p. 238–241, 1959. DOI: 10.9750/PSAS.090.238.241. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/8537. Acesso em: 5 may. 2024.