prepared by the JAD Lawyers Conference; editor, Fannie J. Klein
American Bar Association Press, 1981
Buku Teks
Schwartz, Bernard
Clarendon Press Oxford, 1972
Buku Teks SO
Farnsworth, E. Allan
Oceana Publications, 1983
Buku Teks SO
Haviland, H. Field
Brookings Institution, 1960
Buku Teks
edited by Frank Freidel and Norman Pollack
Rand McNally, 1963
Buku Teks SO