Challenges in plant productivity and food security in changing environment: proceedings of the 14th Malaysian Society of Plant Physiology Conference 2003, Pahang (Malaysia), 23-25 Sept 2003, p. 47-53
Malaysian Natural Resources: Sustainability, Development and Strategies: Proceedings of Tropical Natural Resource Symposium: Sarawak (Malaysia), 6-8 Dec 1993, p. 107-116