Smith JP, Durfee KK, Marymont JH (March 1979). "A review of laboratory methods for identification of group B streptococci (Streptococcus agalactiae)". Am J Med Technol 45 (3): 199–204. PMID 371403.
Keefe GP (July 1997). "Streptococcus agalactiae mastitis: a review". Can Vet J 38 (3): 199–204. PMC 1576741. PMID 9220132.