Vu Dinh Ton, Han Quang Hanh, Nguyen Dinh Linh and Nguyen Van Duy 2009 Development of biogas technology for livestock farms in ThailanUse of redworms (Perionyx excavatus) to manage agricultural wastes and supply valuable feed for poultry.  Proceedings MEKARN Workshop on  Livestock, Climate Change and the Environment (Editors: Reg Preston and Vo Lam ), An Giang University, Vietnam, 16-18 November 2009. http://www.mekarn.org/workshops/environ/Abstracts/han_HUA.htm