Fawz Abdul Salam K.AL-Saffar, Abdul Razak K. Mahmood, Najwa I. AL- Barhawi. Investigation at the molecular level for a nifgenes to bacteria klebsiella pneumoniea the use of polymerase chain reaction (PCR). Tikrit J. Pure Sci. [Internet]. 2023 Jan. 27 [cited 2024 May 20];22(3):58-62. Available from: https://tjps.tu.edu.iq/index.php/tjps/article/view/712