Proceeding of the 2009 International Conference on Oil Palm and the Environment : Harmonizing oil palm with environment: Malaysian Agro Exposition Park Serdang, 14-15 August 2009, p. 149-162
Proceedings of 2010 National Seminar Palm Oil Milling, Refining, Environment and Quality (POMREQ): Kota Kinabalu, Sabah (Malaysia), 27 – 28 Sep, 2010, p. 310-320