FORBES, A P. Notice of the Ancient Bell of St Fillan. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 8, p. 265–276, 1871. DOI: 10.9750/PSAS.008.265.276. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/5423. Acesso em: 18 jun. 2024.