1. Code of Federal Regulations, Title 21 Food and Drugs, Part 610.12 Sterility testing. Washington, DC: US Government Printing Office; April 2010.
2. USP <71> Sterility Tests. Pharmacopeial Forum USP 33-NF 28. Rockville, MD: The United States Pharmacopeial Convention, Inc.; 2011.
3. The Sterility testing of pharmaceuticals;Bowmann;J Pharm Sci,1969
4. A study of the growth-promoting properties of fluid and solid microbial-contamination test media on small numbers of microorganisms;Clausen;Pharm Acta Helv,1973
5. Comparative study of seven media for sterility testing;Abdou;J Pharm Sci,1974