Kusmartono 2007: Effects of supplementing Jackfruit (Artocarpus heterophyllus L) wastes with urea or Gliricidia/cassava leaves on growth, rumen digestion and feed degradability of sheep fed on rice straw basal diet. Livestock Research for Rural Development. Volume 19, Article #21. Retrieved , from http://www.lrrd.org/lrrd19/2/kusm19021.htm