GLEN, Robert. Notes on the Ancient Musical Instruments of Scotland. With Illustrative Drawings. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 14, p. 114–125, 1880. DOI: 10.9750/PSAS.014.114.125. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/5908. Acesso em: 20 apr. 2024.