Kavana P Y, Kizima J B, Msanga Y N, Kilongozi N B, Msangi B S J, Kadeng'uka L A, Mngulu S and Shimba P K 2005:  Potential of pasture and forage for ruminant production in Eastern zone of Tanzania.  Livestock Research for Rural Development. Volume 17, Article #144.  Retrieved 
, from http://www.lrrd.org/lrrd17/12/kava17144.htm