“Isolation and Purlfkation of B-Lactemase from Proteus Mairbilis Local Isolates 4TF and 20TF”. Baghdad Science Journal 6, no. 2 (June 7, 2009): 249–256. Accessed July 7, 2024. https://bsj.uobaghdad.edu.iq/index.php/BSJ/article/view/977.