Baughan, Michael. Continent in the Balance, Africa: Zimbabwe. Stockton:
Mason Crest Publishers, 2005. Print
Exploring Zimbabwe. N.p.: interKnowledge Corp., 1998-2005. Web. 3
Apr. 2013.
Nelson, Harold D. Zimbabwe, A Country Study. Washington DC: United States Government, 1983.
Gazlake, Peter S. Great Zimbabwe. Great Britain: Hazell Watson and Viney LTD, Alesbury, 1973
http://www.historytoday.com/ann-hills/great-zimbabwes-trading-past
Mason Crest Publishers, 2005. Print
Exploring Zimbabwe. N.p.: interKnowledge Corp., 1998-2005. Web. 3
Apr. 2013.
Nelson, Harold D. Zimbabwe, A Country Study. Washington DC: United States Government, 1983.
Gazlake, Peter S. Great Zimbabwe. Great Britain: Hazell Watson and Viney LTD, Alesbury, 1973
http://www.historytoday.com/ann-hills/great-zimbabwes-trading-past