Bryan, J. Ingram
Thornton Butterworth, 1929
Koleksi Publik
Aston, W.G.
Charles E. Tutle, 1981
Buku Teks
Bateson, FW
Longmans , 1965
Buku Teks
Sutherland, John, 1938-, author
Yale University Press, 2013
Buku Teks
Blamires, Harry
Routledge, 1994
Buku Teks