Thorne, Matt, author
Faber and Faber, 2013
Buku Teks
Cummings, Paul, author
St. Martin's Press, 1966
Buku Referensi
Fielding, Mantle, 1865-1941, author
Apollo, 1983
Buku Referensi
Illinois USA, 1974
Buku Referensi
Baldwin, J., author
John Wiley & Sons, 1996
Buku Teks