Hicks, John R., author
Oxford University Press, 1975
Buku Teks
Lipsey, Richard G., 1928-, author
Weidenfeld and Nicolson, 1972
Buku Teks
McEachern, William A., author
South-Western College Publishing, 1988
Buku Teks
Coyle, Diane, author
Texere, 2002
Buku Teks
Kazuo, Koike
LCTB International Library Foundation, 1995
Buku Teks