edited by Peter J. Lea, Richard C. Leegood
John Wiley & Sons, 1993
Buku Teks
Freifelder, David
Jones and Bartlett, 1986
Buku Teks
Weaver, Robert F.
McGraw-Hill, 1999
Buku Teks
Weaver, Robert F.
McGraw-Hill, 2012
Buku Teks
edited by Michael M. Burrell
Humana Press, 1993
Buku Teks