Salvatore, Dominick, author
McGraw-Hill, 1993
Buku Teks
Sachs, Jeffrey D., author
Harvester, 1993
Buku Teks
Salvatore, Dominick, author
McGraw-Hill, 1996
Buku Teks
Arouri, Mohamed, editor
Academic Press, 2014
eBooks
edited by John Ravenhil
Oxford University Press, 2014
Buku Teks