Rohwer, Claude D., author
Thomson Reuters, 2010
Buku Teks
Kionka, Edward J., author
Thomson Reuters, 2010
Buku Teks
Duxbury, Robert, author
Sweet and Maxwell, 1997
Buku Teks
Siever, Ellen, author
O'Reilly, 2003
Buku Teks
Gardner, Simon
Clarendon Press, 1990
Buku Teks