KERR, Robert; LOCKIE, J R. Communion Tokens of the Free Church of Scotland. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 79, p. 26–80, 1946. DOI: 10.9750/PSAS.079.26.80. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/8230. Acesso em: 27 apr. 2024.