MACKINLAY, James M. Traces of the Cultus of St Fillan at Killallan, Renfrewshire. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 29, p. 251–255, 1895. DOI: 10.9750/PSAS.029.251.255. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/6592. Acesso em: 3 may. 2024.