ลิงค์ที่เกี่ยวข้อง

1. http://eu.lib.kmutt.ac.th/elearning/Courseware/BCT611/Chap1/chapter1_1.html

2. http://th.wikipedia.org/wiki/%E0%B8%81%E0%B8%A3%E0%B8%94%E0%B8%84%E0%B8%B2%E0%B8%A3%E0%B9%8C%E0%B8%9A%E0%B8%AD%E0%B8%81%E0%B8%8B%E0%B8%B4%E0%B8%A5%E0%B8%B4%E0%B8%81

3. http://th.wikipedia.org/wiki/%E0%B8%84%E0%B8%B5%E0%B9%82%E0%B8%95%E0%B8%99

4.http://th.wikipedia.org/wiki/%E0%B9%80%E0%B8%AD%E0%B8%AA%E0%B9%80%E0%B8%97%E0%B8%AD%E0%B8%A3%E0%B9%8C

5. http://th.wikipedia.org/wiki/%E0%B9%81%E0%B8%AD%E0%B8%99%E0%B8%95%E0%B8%B4%E0%B8%9A%E0%B8%AD%E0%B8%94%E0%B8%B5

6. http://th.wikipedia.org/wiki/%E0%B8%81%E0%B8%A3%E0%B8%94%E0%B8%AD%E0%B8%B0%E0%B8%A1%E0%B8%B4%E0%B9%82%E0%B8%99

7. http://www.research.chula.ac.th/reprints/2550/Jul50/All_heallth50_1.htm


8. http://th.wikipedia.org/wiki/%E0%B8%AA%E0%B8%96%E0%B8%B2%E0%B8%99%E0%B8%B0%E0%B8%AD%E0%B8%AD%E0%B8%81%E0%B8%8B%E0%B8%B4%E0%B9%80%E0%B8%94%E0%B8%8A%E0%B8%B1%E0%B8%99

9. http://th.wikipedia.org/wiki/%E0%B8%81%E0%B8%A3%E0%B8%94%E0%B9%84%E0%B8%82%E0%B8%A1%E0%B8%B1%E0%B8%99

10. http://th.wikipedia.org/wiki/%E0%B8%81%E0%B8%A3%E0%B8%94%E0%B9%84%E0%B8%82%E0%B8%A1%E0%B8%B1%E0%B8%99