1. AOAC. 1995. Official Methods of Analysis of AOAC International. Sixteenth Edition, 5th Revision, 1999. Vol. 2. Association of Official Analytical Chemists, Washington D.C.
2. AOCS. 2003. Official Methods and Recommended Practices of the AOCS. Fifth edition. AOCS, Illinois.
3. Fats and Oil Handbook;Bockisch,1993
4. Valuable minor constituents of commercial red palm olein: carotenoids, vitamin E, ubiquinones and sterols;Bonni;Journal of Oil Palm Research,2000
5. De Greyt W, Kellens M., 2005. Deodorization. In: Shahidi F (ed) Bailey's industrial oil and fat products: processing and technologies, vol 5, 6th ed. Wiley Interscience, New Jersey, pp. 352-357.