Ross, Alf, author
Stevens & Sons Limited, 1958
Buku Teks
Teitel, Ruti G., author
Oxford University Press, 2000
Buku Teks
Marshall, H.H.
Sweet & Maxwell Limited, 1959
Buku Teks
Freund, Paul A., author
Harvard University Press, 1974
Buku Teks
Skolnick, Jerome H., author
Delmar, 1977
Buku Teks