Mwambene P L, Chawala A, Illatsia E, Das S M, Tungu B and Loina R 2014:  
Selecting indigenous cattle populations for improving dairy production in the Southern Highlands and Eastern Tanzania. 
 Livestock Research for Rural Development. Volume 26, Article #46. 
 Retrieved 
, from http://www.lrrd.org/lrrd26/3/mwam26046.html