GEDDES, Jane; MURRAY, Hilary K; MURRAY, J Charles. Tullich, Aberdeenshire: a reappraisal of an early ecclesiastical site and its carvedstones in the light of recent excavations. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 145, p. 229–281, 2016. DOI: 10.9750/PSAS.145.229.281. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/9831. Acesso em: 27 apr. 2024.