6. Bibliography

Caroline Porter (2012, October 23). Calling All Germs, Cellphones Are Great for Sharing Photos—and Bacteria; Cleaning May Harm Screens. Retrieved on August 22, 2013 from http://online.wsj.com/article/SB10000872396390444868204578064960544587522.html

Susan baxter (n.d.). Terrifying Germs That Live on Your Smartphone. Retrieved on August 22, 2013 from http://cell-phones.toptenreviews.com/smartphones/terrifying-germs-that-live-on-your-smartphone.html

Susan E. Matthews (2012, August 30). Why Your Cellphone Has More Bacteria Than a Toilet Seat. Retrieved on August 22, 2013 from http://www.livescience.com/22822-cell-phones-germs.html

The Engineering Toolbox(n.d.). Food and Foodstuff - pH Values. Retrieved on September 1, 2013 from http://www.engineeringtoolbox.com/food-ph-d_403.html

No comments:

Post a Comment