Streptococcus and Staphylococcus in sludge/biosolids
                                                   University of Pretoria etd - Chaie-Mateau, J R B (2005)

                           Persistence of Human Pathogens in a Crop Grown from Sewage Sludge Treated Soil
                                                                                         by
                                                        Jacobeth Raesibe Bettina Chale-Matsau

                                            Submitted in partial fulfillment of the requirement for the degree of
                                                                            PHILOSOPHIAE DOCTOR
                    (Water Utilisation) in the Faculty of Engineering, the Built Environment and Information Technology
                                                                    University of Pretoria Pretoria
                                                                                    June 2005
                            upetd.up.ac.za/thesis/available/etd-09292005-114114/unrestricted/02chapter2.pdf
http://www.google.com/search?q=Pepper,+Gerba,+Staphylococcus,+sludge&hl=en&lr=&ie=UTF-8&start=20&sa=N