1. Abebe, T.; Mihret, A and Demisie, Y. (2011). Longitudinal bacteriology of burn patients at yekatit 12 Hospital burn center, addis ababa, ethiopia. MSc. Thesis. Addis Ababa University School of Graduate Studies Faculty of Medicine Department of Medical Microbiology, Immunology and Parasitology.
2. Al-Khalidi, B.A.H;. Rahman. M, Khairy, M.;. Abdel Redha, M. (2017). Bacterial nosocomial infection in Al-Diwanyia teaching hospital. College of Science, Al-Qadisiyah University, Iraq.
3. Benson. (2001). Microbiological Applications Lab Manual, 8th ed. McGraw-Hill, P: 50–70
4. Survival of Nosocomial Bacteria on Hospital Fabrics
5. Cheesbrough M. (2006). District Laboratory Practice in Tropical Countries. Part II 2nd ed.P: 80–84