Van Heerden, Willem Francois Petrus; Janse van Rensburg, Estrelita; Hemmer, J.; Raubenheimer, E.J.; Engelbrecht, Susan(International Institute of Anticancer Research, 1998-01)
Janse van Rensburg, Estrelita; Engelbrecht, Susan; Mwenda, Jason M.; Laten, Janetta D.; Robson, Brenda A.; Stander, Tania; Chege, Gerald K.(American Society for Microbiology, 1998)