Abdullah, D., Ping, Q., Liu, G. (1996). Enhancing the effect of essential oils on the penetration of 5-fluorouracil through rat skin. Yao Xue Xue Bao, 31(3) 214-221.
Brandao, F. M. (1986). Occupational allergy to lavender oil. Contact Dermatitis, 249-50.
Buckle, J. (2003). Clinical aromatherapy: Essential oils in practice. New York: Churchill Livingstone.
Burns, E., Blamey C., Ersser S., et al. (2000). An investigation into the use of aromatherapy in intrapartum midwifery practice. The Journal of Alternative & Complementary Medicine, 6(2) 141-147.
Clark, S. M., & Wilkinson, S. M. (1998). Phototoxic contact dermatitis from 5-methoxypsoralen in aromatherapy oil. Contact Dermatitis, 38, 289-290.
Hammer, K. A., Carson, C. F., Riley, T. V., & Nielsen, J. B. (2006). A review of the toxicity of Melaleuca alternifolia (tea tree) oil. Food & Chemical Toxicology, 44(5), 616-625.
Kejova K, Jorova D, Bendova H, Gajdos P & Kolarova H. (2010). Phototoxicity of essential oils intended for cosmetic use. Toxicology in Vitro, 24 (8), 2084-9.
Price, S. & Price, L. (2007). Aromatherapy for health professionals, 3rd Ed. Philadelphia: Churchill Livingstone Elsevier.
Tisserand, R. & Balacs, T. (1998). Essential oil safety: A guide for health professionals. Edinburgh: Churchill Livingstone.
U.S. Food & Drug Administration: Aromatherapy, March 13, 2000
http://www.fda.gov/cosmetics/productandingredientsafety/productinformation/ucm127054.htm
Vigan M. (2010). Essential oils: Renewal of interest and toxicity. [Review]. European J of Dermatology, 20 (6), 685-92.
Williams, A. & Barry, B. (1989). Essential oils as novel human skin penetration enhancers. International Journal of Pharmaceutics, 57, R7-R9.
