เวปคลื่น

http://www.gisthai.org/about-gis/electromagnetic.html

http://blake.prohosting.com/pstutor/physics/wave/wave_concept.html

http://th.wikipedia.org/wiki/%E0%B8%84%E0%B8%A5%E0%B8%B7%E0%B9%88%E0%B8%99


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


http://www.rmutphysics.com/physics/oldfront/88/wave.html


http://www.rsu.ac.th/science/physics/pom/physics_2/wave/wave_1.htm

http://www.bs.ac.th/lab2000/physicweb/sonic.htm