1. British Pharmacopoeia, Monograph: Medicinal and Pharmaceutical Substances, vols. I and II, Medicines & Health Products Regulatory Agency, UK, 2013, pp. 1022–1023.
2. Clark's Analysis of Drugs and Poison,2004
3. Martindale: The Extra Pharmacopeia,1999
4. Monograph;European Pharmacopoeia,2008
5. Antioxidant and anti-age therapeutics: evaluation and perspectives;Bonnefont-Rousselot;J. Soc. Biol.,2001