1. McCrum N. G., Buckley C. P., Bucknall C. B., Principles of polymer engineering. Oxford; New York: Oxford University Press. p.1. I SBN 0-19-856526-7(1997).
2. Painter Paul C, Coleman Michael M, Fundamentals of polymer science: An introductory text. Lancaster, Pa: Technomic Pub. Co. p.1.ISBN 1-56676-559-5. (1997).
3. http://goldbook.Iupac.org/Mo3667.html
4. http://nvl.nist.gov/pub/nistpubs/sp958-lide/344-346.pdf