Palm Oil Developments No.27 (Dec 1997) p1-9
Carotenes, Vitamin E and Sterols in Oils from Elaeis guineensis, Elaeis Oleifera and their Hybrids = Carotenos, Vitamina E y Esteroles En Aceites de Elaeis guineensis, Elaeis Oleifera y Sus Hibridos
CHOO Yuen May, MA Ah Ngan , YAP Soon Chee