Stephan, Paul B.
Emmanuel Law Outlines, 1994
Buku Teks
Williamson, J. Peter (John Peter)
Scott, Foresman, 1968
Buku Teks
Bittker, Boris I.
Little, Brown & Co., 1990
Buku Teks
Gaffney, Dennis J.
McGraw-Hill, 1982
Buku Teks
Gaffney, Dennis J.
McGraw-Hill, 1984
Buku Teks