Silivong P, Xaykham O, Aloun O and Preston T R 2012: Effect of potassium nitrate and urea on feed intake, digestibility, N balance and methane production of goats fed a basal diet of Gliricidia (Gliricidia sepium) and Mimosa (Mimosa pigra) foliages supplemented with molasses. Livestock Research for Rural Development. Volume 24, Article #138. Retrieved , from http://www.lrrd.org/lrrd24/8/phon24138.htm