REFERENCES/BIBLIOGRAPHY

Atlas, R.M. (1995). Microorganisms in Our World. Mosby Year Book. Inc. 

Medigan, M.T. et al. (2009). Brock Biology of Microorganisms. (12th ed.). Pearson Education Inc

Pelczar, M.J., Chan, E.C.S. & Krieg, R.N. (2001). (5th ed.). Microbiology. McGraw-Hill. 

Willey, J.M., Sherwood, L.M & Woolverton, C.J. (2008). Microbiology. (7th ed.). Boston Bur Bridge, IL: McGraw-Hill Higher Education.