Friedmann, Wolfgang, 1907-1972, author
Columbia University Press, 1967
Buku Teks
Kelsen, Hans, author
University of California Press, 1978
Buku Teks
Kelsen, Hans, author
Clarendon Press Oxford, 1992
Buku Teks
Friedmann, Wolfgang, 1907-1972, author
Columbia University Press, 1960
Buku Teks
Friedmann, Wolfgang, 1907-1972, author
RajaGrafindo Persada, 1996
Buku Teks