Grierson, Herbert John Clifford, Sir, 1866-1960, author
Clarendon Press, 1958
Buku Teks
Blamires, Harry, author
Routledge, 1994
Buku Teks
Blamires, Harry, author
Routledge, 1994
Buku Teks
Bateson, FW
Longmans , 1965
Buku Teks
Gwynn, Stephen, author
Macmillan, 1950
Buku Teks