KENNEDY, Michael; BOURNE, Joyce. The Concise Oxford Dictionary of Music. Oxford: Oxford University Press, 2004. 814 s. Dostupné online. ISBN0-19-860884-5. S. 351. (anglicky)
walesonline.co.uk
Conductor Owain Arwel Hughes publishes his autobiography [online]. Cardiff: Wales Online, 2012-09-14 [cit. 2015-01-30]. Dostupné online. (anglicky)