Fawz Abdul Salam K.AL-Saffar, Abdul Razak K. Mahmood, and Najwa I. AL- Barhawi. “Investigation at the Molecular Level for a Nifgenes to Bacteria Klebsiella Pneumoniea the Use of Polymerase Chain Reaction (PCR)”. Tikrit Journal of Pure Science 22, no. 3 (January 27, 2023): 58–62. Accessed May 19, 2024. https://tjps.tu.edu.iq/index.php/tjps/article/view/712.