Gw mau tau Catatan dari Gododdin

Kenneth H. Jackson (1969). The Gododdin: The Oldest Scottish poem (Edinburgh: University Press) * W.J. Watson (1926, 1986). The History of the Celtic Place-Names of Scotland: being the Rhind lectures on archaeology (expanded) delivered in 1916. (Edinburgh, London: W. Blackwood & Sons, 1926; Edinburgh: Birlinn, 1986, reprint edition).

W.J. Watson (1926, 1986). The History of the Celtic Place-Names of Scotland: being the Rhind lectures on archaeology (expanded) delivered in 1916. (Edinburgh, London: W. Blackwood & Sons, 1926; Edinburgh: Birlinn, 1986, reprint edition).

Davies, John. "Dinas Powys, Catraeth, and Llantwit Major." A History of Wales. London: Allen Lane:, 1993. 61-62. Print.

Davies, Norman. "The Germanico-Celtic Isles." The Isles: A History. Oxford: Oxford UP, 1999. 165-166, 185-187, 195, 207. Print.