Nadelmann, Kurt H.
Martinus Nijhoff, 1972
Buku Teks
Graveson, R.H.
Sweet & Maxwell, 1974
Buku Teks
Collier, John Greenwood
Cambridge University Pers, 1994
Buku Teks
Rutter, William A.
s.n., 1973
Buku Teks
Collier, John Greenwood
Cambridge University Press, 1994
Buku Teks