報告四

https://tw.news.yahoo.com/%E7%B6%B2%E8%B7%AF%E7%8A%AF%E7%BD%AA%E6%BA%AB%E5%BA%8A-%E7%B5%B2%E8%B7%AF-%E7%B6%B2%E7%AB%99%E5%8F%88%E8%B5%B7-063458402.html

http://www.shs.edu.tw/works/essay/2007/10/2007102916100724.pdf