Bergel, Egon Ernest, author
McGraw-Hill, 1955
Buku Teks
Gleeson, Brendan, 1964- author
Routledge, 2014
Buku Teks
Clark, David, 1946-, author
Routledge, 1996
Buku Teks
Kunstler, James Howard, author
The Free Press, 2001
Buku Teks
Mercer, Charles, author
Penguin Books, 1975
Buku Teks