Lundu T, Choongo K, Munyinda K, Walubita K and Siulapwa N J 2012: A survey of seasonal macro-mineral status of soil, plants and goats in Siavonga, southern Zambia. Livestock Research for Rural Development. Volume 24, Article #76. Retrieved , from http://www.lrrd.org/lrrd24/5/lund24076.htm