1. Pharmaceutical microbiology;Hugo,1998
2. Environmental monitoring in non-sterile product manufacturing;Cundell,2005
3. Managing the microbiological quality of pharmaceutical excipients;Cundell;PDA J Pharma Sci Technol,2005
4. Microbiological examination of non-sterile products: tests for specified microorganisms;United States Pharmacopeia (USP);Pharm Forum,2003
5. Sampling: principles and practice;Baird,2000