1. Shin SC: Drinking, smoking, drug, food and oral health. Dankook University Press, Seoul, 2009.
2. Park KH, Chung JH, Ki MC, Eun JB: A survey on Korean consumer attitude toward green tea. J Korean Tea Soc 2: 129-146, 1996.
3. Retrieved September 11 2012, from <uri>http://mbnmoney.mbn co.kr/news/view/news_no=mm1000681943(2012)</uri>.
4. Nielsen Korea:2014 Carbonated water sales trends Retrieved January 25 2015, from .