Haueisen, William D.
Prentice-Hall, 1982
Buku Teks
Kroenke, David M., 1946-, author
Mitchell Publishing, 1987
Buku Teks
Orilia, Lawrence, author
John Wiley & Sons, 1972
Buku Teks
edited by Barry G. Silverman
Addison-Wesley, 1987
Buku Teks
Clark, Frank J., author
Prentice-Hall, 1972
Buku Teks