LAING, Alexander. Notice of Early Monuments in the Parish of Strowan in Blair Athole. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 7, p. 442–444, 1867. DOI: 10.9750/PSAS.007.442.444. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/5354. Acesso em: 8 may. 2024.