MOTAWEQ, Z.Y. 2022. Prevalence of b-lactamase produced in Klebsiella pneumoniae and Enterobacter cloacae isolated from gingivitis in Al-Najaf Province, Iraq. Nusantara Bioscience. 14, 1 (Apr. 2022). DOI:https://doi.org/10.13057/nusbiosci/n140110.