Thapa, B., and C. Tribuddharat. “Molecular Characterization of Citrobacter Freundii Isolated from Neonates in Neonatal Intensive Care Unit of Nepal”. Journal of Nepal Paediatric Society, Vol. 32, no. 2, Oct. 2012, pp. 132-5, doi:10.3126/jnps.v32i2.5804.