Ross, Stephen A.
McGraw-Hill , 1999
Buku Teks
Gallinger, George W.
Prentice-Hall, 1995
Buku Teks
Cleverley, William O.
Aspen Publication, 1997
Buku Teks
Weston, J. Fred (John Fred), 1916-
The Dryden Press, 1985
Buku Teks
Ross, Stephen A.
McGraw-Hill, 2001
Buku Teks