Hall, James E., author
Brooks/Cole, 1971
Buku Teks
McKeague, Charles P., 1946-, author
Brooks/Cole Cengage Learning, 2012
Buku Teks
Mewborn, Ancel C., author
Addison-Wesley, 1969
Buku Teks
White, Myron R.
Allyn and Bacon, inc., 1968
Buku Teks
Frank C. Wilson, Scott L. Adamson, Trey Cox, Alan E.O'Briyan
Cengage learning, 2013
Buku Teks