Oil Palm Bulletin No. 47 (November 2003) p15-27
Current status of Malaysian crude palm kernel oil characteristics
NUZUL AMRI Ibrahim , AINIE Kuntom , TANG Thin Sue , SIEW Wai Lin

Oil Palm Bulletin No. 24 (May 1992) p13 - 27
An assessment of the iron and free fatty acid content of production oil from various palm oil mills
CHOW Mee Chin