เว็บไซด์เรื่องคลื่น

http://th.wikipedia.org/wiki/%E0%B8%84%E0%B8%A5%E0%B8%B7%E0%B9%88%E0%B8%99%E0%B9%81%E0%B8%A1%E0%B9%88%E0%B9%80%E0%B8%AB%E0%B8%A5%E0%B9%87%E0%B8%81%E0%B9%84%E0%B8%9F%E0%B8%9F%E0%B9%89%E0%B8%B2



http://www.bkw.ac.th/content/snet3/saowalak/radiowave/radiowave.htm


http://www.mwit.ac.th/~ampornke/Documents_PPT/PPT_Waves/08_3The%20Nature%20and%20Properties%20of%20sound1.pdf


http://www.rmutphysics.com/CHARUD/oldnews/146/science/waves.htm



http://www.school.net.th/library/create-web/10000/technology/10000-811.html



http://www.absorn.ac.th/e-learning/ebook/supatra/b4.htm