"Can house music solve the energy crisis?." HowStuffWorks. N.p., n.d. Web. 26 Nov. 2013. <http://science.howstuffworks.com/environmental/green-

science/house-music-energy-crisis1.htm>.


"Piezo Systems: History of Piezoelectricity." Piezo Systems: History of Piezoelectricity. N.p., n.d. Web. 26 Nov. 2013. <http://www.piezo.com/tech4history.html>.


"Piezoelectric footprint." YouTube. YouTube, 23 Mar. 2011. Web. 26 Nov. 2013. <http://www.youtube.com/watch?v=YFITXmzB9EI>.


"Piezoelectricity." YouTube. YouTube, 11 Oct. 2010. Web. 26 Nov. 2013. <http://www.youtube.com/watch?v=Eam1-9FDD-Y>.


"Piezoelectricity." Wikipedia. Wikimedia Foundation, 19 Nov. 2013. Web. 26 Nov. 2013. <http://en.wikipedia.org/wiki/Piezoelectricity>.


"Piezoelectricity." Encyclopedia of Science & Technology. 11 ed. 2012. Print.


"piezo generator shoes." YouTube. YouTube, 20 Jan. 2013. Web. 26 Nov. 2013. <http://www.youtube.com/watch?v=VEsT_ObdFS0>.