Daoud, Munaf S., and Faraid A. AL- chalabi. “DNA Content of Spermatozoa With Respect to Seminal Sperm Concentration Using a Microchemical Spectrophotometric Method”. Journal of the Faculty of Medicine Baghdad, vol. 48, no. 4, Jan. 2007, pp. 410-2, https://doi.org/10.32007/jfacmedbagdad.4841467.