Martin, David W., 1943-, author
Thomson, Wadsworth, 2008
Buku Teks
Martin, David W., 1943-, author
Book/Cole Pub., 1991
Buku Teks
Martin, David W., 1943-, author
Thomson Wadsworth, 2004
Buku Teks
BPS Blackwell, 2004
Buku Teks
Gaultney, Jane F., author
California, 2007
Buku Teks