STEPHEN, Walter M. A toll-schedule at Struthers, Fife. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 100, p. 198–199, 1969. DOI: 10.9750/PSAS.100.198.199. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/8740. Acesso em: 5 may. 2024.