MACDONALD, A D S; LAING, Lloyd R. Early ecclesiastical sites in Scotland: a field survey, Part 1. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 100, p. 123–134, 1969. DOI: 10.9750/PSAS.100.123.134. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/8729. Acesso em: 26 apr. 2024.