Gabriel, Tom
Belhaven Press , 1991
Buku Teks
Greene, Graham, author
Everyman's Library, 1992
Buku Teks
Batley, Claude, author
John Tiranti, 1948
Buku Referensi
Bauer, P.T., author
Frederick A. Praeger, 1961
Buku Teks
Bowman, Larry W., author
Westview Press, 1991
Buku Teks