Manh L H, Dung N N X, Minh B T L and Duong M T 2012: Treating pig wastewater by applying a model of fish pond or biodigester tank followed by a fish pond in Phuoc Tho state farm. Livestock Research for Rural Development. Volume 24, Article #29. Retrieved , from http://www.lrrd.org/lrrd24/2/manh24029.htm