Pelczar, M. J., Krieg, N. R., Chan, E. C. S., Microbiology: concepts and applications, McGraw-Hill, New York, USA, 1993.
Carpenter, P. L., Microbiology, W. B. Saunders, Philadelphia, USA, 1977.
Norton, C. F., Microbiology, Addison-Wesley, Reading, USA, 1986.
Kiss, István, Testing methods in food microbiology, Elsevier, Amsterdam, The Netherlands, 1984.