Proceedings of Oleo & Specialty Chemicals Conference: PIPOC 2007: International Palm Oil Congress: Palm Oil: Empowering Change. Kuala Lumpur (Malaysia), 26-30 Aug, 2007, p. 227-233.
Proceedings of the National Oil Palm Planters Conference 2002 : Strategy and Goals Towards Reinforcement for Oil Palm Planters Sector, 31 October-1 November 2002: Putrajaya (Malaysia), 31 Oct - 1 Nov 2002, p. 3-8