BARBOUR, James. Notice of the Excavation of the Camp or Earthwork at Rispain in Wigtownshire. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 36, p. 621–626, 1902. DOI: 10.9750/PSAS.036.621.626. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/6845. Acesso em: 29 apr. 2024.