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2.http://panchalee.wordpress.com/2011/06/17

3.http://sahutchaisocialwork.wordpress.com

4.http://www.thailandlawyercenter.com/index.php?lay=show&ac=article&Id=538974775&Ntype=19

5.http://www.lks.ac.th/kukiat/student/betterroyal/social/46.html

6.http://maneerat-happy.blogspot.com/2009/10/blog-post_6338.html และ http://www.trueplookpanya.com/true/knowledge_detail.php?mul_content_id=3022

7.http://www.maceducation.com/e-knowledge/2343104100/02.htm

8.http://www.rmuti.ac.th/user/thanyaphak/Web%20EMR/Web%20IS%20Environment%20gr.3/page15_tem.htm

9.http://www.huaysaicenter.org/environment.php

10.http://www.huaysaicenter.org/environment.php

11.http://www.pea.co.th/pean1/reduce-elec.html

12.http://www.maceducation.com/e-knowledge/2343104100/02.htm