James Fieser, John Powers, editors
McGraw-Hill, 2012
Buku Teks
editor, John R. Hinnells
Macmillan, 1993
Buku Referensi
edited by Peter Clarke
Routledge, 1990
Buku Teks
edited by Peter Clarke
Routledge, 1988
Buku Teks
edited by John Bowker
Oxford University Press, 1997
Buku Referensi