Brigham, Eugene F., 1930-, author
The Dryden Press, 1990
Buku Teks
Henderson, Glenn V., author
[publisher not identified], [date of publication not identified]
Buku Teks
by Arthur J. Keown, John D. Martin, J. William Petty, David F. Scott
Prentice-Hall, 2001
Buku Teks
Shapiro, Alan C., author
Allyn and Bacon, 1986
Buku Teks
Madura, Jeff, author
Thomson South-Western, 2003
Buku Teks