Gaffney, Dennis J.
McGraw-Hill, 1984
Buku Teks
Burke, Karen C., 1951-
West Publishing, 1992
Buku Teks SO
Burke, Karen C., 1951-
West Publishing, 1996
Buku Teks SO
Stephan, Paul B.
Emmanuel Law Outlines, 1994
Buku Teks SO
Gaffney, Dennis J.
McGraw-Hill, 1982
Buku Teks SO