Journal Article
                        
                        Munch, Z., S.W.  Van Lill, C.N.  Booysen, H.L  Zietsman, D.A.  Enarson, and N.  Beyers.  
"Tuberculosis transmission patterns in a high-incidence area: a spatial analysis." The international journal of tuberculosis and lung disease 7, no. 3 (2003): 271-277.