edited by Dominic Head
Cambridge University Press, 2016
Buku Teks
Evans, B. Ifor
Penguin Books , 1948
Buku Teks
Evans, B. Ifor
Penguin Books, 1944
Buku Teks
Grierson, Herbert John Clifford, Sir, 1866-1960, author
Chatto and Windus, 1950
Buku Teks
Rowse, A.L.
Macmillan, 1950
Buku Teks