McMahon, Frank B., author
The Dorsey Press, 1986
Buku Teks
Miller, George A. (George Armitage), 1920-2012, author
Harper & Row , 1962
Buku Teks
King, Laura A. (Laura Ann), author
McGraw-Hill, 2011
Buku Teks
Carlson, Neil R., author
Allyn and Bacon, [date of publication not identified]
Buku Teks
edited by Sigmund Koch, David E. Leary
McGraw-Hill, 1985
Buku Teks