有趣的博士論文

https://www.youtube.com/watch?v=Rhh56uvKNA4&t=1169s

http://baike.baidu.com/view/6746983.htm

http://wenku.baidu.com/view/960756a8284ac850ad0242cc.html###

http://wenku.baidu.com/view/13a4dcfa4693daef5ef73d12.html?re=view

now, this is a good piece of work of action research