Aregawi T, Animut G, Kebede K and Kassa H 2014:  
Effect of lime and/or urea treatment of sesame (Sesamum indicum L.) straw on feed intake, digestibility and body weight gain of sheep. 
 Livestock Research for Rural Development. Volume 26, Article #146. 
 Retrieved 
, from http://www.lrrd.org/lrrd26/8/areg26146.htm