Mumba C, Samui K L, Pandey G S, Hang’ombe B M, Simuunza M, Tembo G and Muliokela S W 2011: Economic analysis of the viability of smallholder dairy farming in Zambia. Livestock Research for Rural Development. Volume 23, Article #137. Retrieved , from http://www.lrrd.org/lrrd23/6/mumb23137.html