1. McFarlane, M., B. Alaka and N. Macfarlane, Oil Palm News, No. 20, 1, 1975.
2. International Developments in Oil Palm, edited by D.A. Earp and W. Newall, The Incorporated Society of Planters, Malaysia, 1977, p. 27.
3. Tan, B.K., F.C.H. Oh, W.L. Siew and K.G. Berger, Paper presented at the International Conference on Palm Oil Product Technology in the Eighties, Kuala Lumpur, 1981.
4. Zobel, H.F., N.N. Hellman and F.R. Senti, JAOCS 32:706 (1955).
5. AOCS Official and Tentative Methods, 3rd Edn., American Oil Chemists’ Soc., 1974, Method Cd 10-57.