Nhan N T H, Hon N V and Preston T R 2011: Studies on ensiling of Tithonia diversifolia and Taro (Colocasia esculenta) and feeding the silage to fattening pigs as partial replacement of a basal diet of rice bran, broken rice, soybean meal and fish meal. Livestock Research for Rural Development. Volume 23, Article #105. Retrieved , from http://www.lrrd.org/lrrd23/5/nhan23105.htm