Managing forest in the new millenium: Proceedings of The 13th Malaysian Forestry Conference, 20-23 Aug 2001, Johor Bahru (Malaysia), Jabatan Perhutanan Semenanjung Malaysia: Johor Bahru (Malaysia), 20-23 Aug 2001, p. 612-622
Synergistic approach to appropriate forestry technology for sustaining rainforest ecosystems: proceedings International Forestry Seminar: Sarawak (Malaysia), 7-9 Mar 2005, p. 137-146
Proceedings of the International Conference on Environmental Research and Technology (ICERT 2010): Research and Innovation towards Environmental Sustainability: Penang (Malaysia), 2-4 June 2010, p. 55-58