1. Neonatal nosocomial infection. Profile and risk factors;Pawa;Indian paediatrics,1997
2. Clinical profile of Klebsiella septicaemia in neonates;Gupta;Indian J Paediatr,1993
3. Hospital acquired infections: Guidelines to laboratory methods, WHO Regional publication European series No. 4;Parker,1978
4. Mackie and McCartney, Practical Medical Microbiology,1996
5. 1966 Antibiotic susceptibility testing by a standardized single disk method;Bauer;Am J Clin Pathol,1966