Proceedings 4th Malaysian International Cocoa Conference: Sustainable Cocoa Economy Through Increase in Productivity, Efficiency and Quality: Kuala Lumpur (Malaysia), 18-19 Jul 2005, p. 265-270
Proceedings of the 2000 3rd National Seminar on ISO 14000 Series of Environmental Management Standards for Palm Oil and Related Industries: Selangor (Malaysia), 10 Aug 2000, p. 141-169