Cambridge University Press, 1994
Buku Referensi
Shaw, Malcolm Nathan, 1947-, author
Cambridge University Press, 2017
Buku Teks
Fenwick, Charles G., author
Appleton-Century-Crofts, 1948
Buku Teks
Schwarzenberger, Georg, author
Stevens & Sons, 1949
Buku Teks
Wallace, Rebecca M. M., author
Sweet & Maxwell, 1997
Buku Teks