1. Ro BI, Dawson TL. J Investigative Dermatol SP.  2005 10(3): 194-7.
  2. Gaukrodger DJ. Dermatology, An Illustrated Colour Text. 3rd ed. Edinburgh: Churchill Livingstone; 2002.
  3. Long, Walter S. (14 January 1916 – 13 January 1917). “The Composition of Commercial Fruit Extracts”. Transactions of the Kansas Academy of Science 28: 157–161. doi:10.2307/3624347. JSTOR 3624347.
  4. Lawrie, James W. (1928) GLYCEROL AND THE GLYCOLS – Production, Properties and Analysis. The Chemical Catalog Company, Inc., New York, NY.
  5. Leffingwell, Georgia and Lesser, Miton (1945) GLYCERIN – Its Industrial and Commercial Applications. Chemical Publishing Co., Inc., Brooklyn, NY.
  6. Brand JC, Cherikoff V, Lee A, McDonnell J (1982). “Nutrients in important bushfoods”. Proceedings of the Nutritional Society of Australia 7: 50–54.
  7. Gorman JT, Griffiths AD, Whitehead PJ (2006). “An analysis of the use of plant products for commerce in remote Aboriginal communities of Northern Australia”. Econ Bot 60 (4): 362–373.
  8. Cock, I.E. and Mohanty, S. (2011). “Evaluation of the antibacterial activity and toxicity of Terminalia ferdinandia fruit extracts”. Pharmacognosy Journal (3): 72–79.