GOW, James MacKintosh. Notes in Balquhidder : Saint Angus, Curing Wells, Cup-marked Stones, &c. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 21, p. 83–88, 1887. DOI: 10.9750/PSAS.021.83.88. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/6226. Acesso em: 19 apr. 2024.