Tài liệu tham khảo

WikiPedia: Đại_học_Chicago http://www.bloomberg.com/apps/news?pid=20601103&si... http://www.bloomberg.com/apps/news?pid=newsarchive... http://www.britannica.com/EBchecked/topic/497151/s... http://encyclo.findlaw.com/0200book.pdf http://books.google.com/?id=2BHlbO6eJrQC&pg=PA33&l... http://books.google.com/?id=3se-H1Y_l7kC&pg=PA351&... http://books.google.com/?id=ITfaP-xY3LsC&lpg=PA1&d... http://books.google.com/?id=xyQOZUzkt3UC&pg=PA153&... http://www.nytimes.com/2008/07/12/books/12milt.htm... http://colleges.usnews.rankingsandreviews.com/best...