1. Year of Chemical Industry Statistics (2014) Research and Statistics Department, Economics and Industrial Policy Bureau, Ministry of Economy, Trade and Industry(METI) (Japan)
2. Holmberg K (1998) Novel surfactants, preparation, applications, and biodegradability. Surfactant Sci. Ser., 74. K. Holmerg, ed., Dekker, p 333
3. Ligrini O, Oliveros E, Braun AM (1993) Chem Rev 93:671
4. Kato S, Mashio F (1964) The Journal of the Chemical Society of Japan 67:136
5. Carey J, Lawrence L, Toshin HM (1976) Bull Environ Contam Toxicol 16:697