Chatikobo P, Manzi M, Kagarama J, Rwemarika J D and Umunezero O 2009: Benchmark study on husbandry factors affecting reproductive performance of smallholder dairy cows in the Eastern Province of Rwanda. Livestock Research for Rural Development. Volume 21, Article #83. Retrieved
, from http://www.lrrd.org/lrrd21/6/chat21083.htm