Oleiwi, Sanaa R., and Huayda K. Abid. “Role of Extracted Genomic DNA on Biofilm Formation by Pseudomonas Aeruginosa and Klebsiella Pneumoniae in Vitro”. Ibn AL-Haitham Journal For Pure and Applied Sciences, vol. 27, no. 3, Apr. 2017, pp. 34-44, https://jih.uobaghdad.edu.iq/index.php/j/article/view/258.