Europa Law Pub, 2008
Buku Teks
Schwartz, Bernard, author
Little, Brown & Co., 1977
Buku Teks
Schwartz, Bernard, author
Little, Brown & Co., 1988
Buku Teks
Schuck, Peter H., author
Oxford University Press, 1994
Buku Teks
Lorch, Robert S., author
Wayne State University Press, 1969
Buku Teks