BARCLAY, Gordon J et al. Sites of the third millennium BC to the first millennium AD at North Mains, Strathallan, Perthshire. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 113, p. 122–281, 1984. DOI: 10.9750/PSAS.113.122.281. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/9120. Acesso em: 2 may. 2024.