Hi Khun Jatuporn,
I have learned 'mind mapping' two years ago in my master coursework here at Curtin Univ.
Mind mapping is only one useful tool for you to make a further implementation in conducting research.
I got two websites for you krab:
http://www.mapyourmind.com/linksresearch.htm
This one consisted of several tools releted to mapping your ideal or concepts.
http://freemind.sourceforge.net/wiki/index.php/Main_Page
The second one provides a free software for organizing your model krab.
Thank for your email and take good care krab.