Mcdermott, Richard T.
Lexing Publishing, 2000
Buku Teks
Friedmann, Wolfgang, 1907-1972
Little, Brown, 1959
Buku Teks
Kapp, Marshall B.
Jones & Bartllett, 2010
Buku Teks
Chatterjee, S.K.
Martinus Nijhoff Publishers, 1981
Buku Teks
Pozgar, George D.
An Aspen Publication, 1983
Buku Teks