Steane, John
Routledge, 1999
Buku Teks
Buchanan, Robert Angus, author
Penguin, 1972
Buku Teks
edited by Mari Pritchard Parker, Elvio Angeloni
McGraw-Hill, 2013
Buku Teks
Doe, Norman, author
Cambridge University Press, 1990
Buku Teks
Peter Brown, editor
Blackwell Publishing, 2007
Buku Teks