1. All about Tea;Ukers,1935
2. Tea time: Falling prices and rising consumer interest drives U.S. demand;Buss;New Nutr. Bus.,2006
3. Aroma of teas;Yamanishi;Koryo (Flavor),1997
4. A survey on Korean consumer attitude toward green tea;Park;J. Korean Tea Soc.,1996
5. Chemical components of various green teas on market;Park;J. Korean Tea Soc.,1998