Nazrina, Sayeda, et al. “Prophylactic Administration of Intravenous Ceftriaxone before Incision or After Cord Clamping During Caesarean Section A Comparative Study”. Journal of Dhaka National Medical College & Hospital, vol. 23, no. 2, Sept. 2017, pp. 19-22, doi:10.3329/jdnmch.v23i2.78076.