Bingham, Neil, author
National Book Network, 1996
Buku Teks
King, Francis, 1923-2011, author
Longman, 1976
Buku Teks
McAuley, James, author
Oxford University, 1963-1973
Buku Teks
Charles W. Eliot, edited
P. F. Collier & Son Corporation, 1959
Buku Referensi
Routledge, 1998
Buku Teks