De Oliveira, Tulio; Engelbrecht, Susan; Janse van Rensburg, Estrelita; Gordon, Michelle; Bishop, Karen; Zur Megede, Jan; Barnett, Susan W.(American Society for Microbiology, 2003-09)
North, Ernest J.; Millard, Sollie M.(Innovatio Publishers (Germany), Media Tenor (South Africa) and the Institute for Media Analysis in South Africa (Imasa), 2003)