SCHAARWÄCHTER, Jürgen. Sally Harper: Music in Welsh Culture Before 1650. Die Musikforschung, [S. l.], v. 61, n. 4, p. 389–390, 2008. DOI: 10.52412/mf.2008.H4.4382. Disponível em: https://mf.journals.qucosa.de/mf/article/view/4382. Acesso em: 18 apr. 2025.