Luu Huu Manh, Nguyen Nhut Xuan Dung, Nguyen Dang Tuan and Bui Thi Le Minh  2009  Evaluation method of treating pig waste by applying a model of fish pond followed water-hyacinth pond in Vinh Khanh state farm, An Giang province.  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/mhan02.htm