Jenan Atiyah Ghafil, Ayaid Khadem Zgair, Shaymaa Hussein Hassan, and Walaa Najim Abd alwahed, trans. “Effect of Lead on Biofilm Formation by Environmental Isolates of Bacillus Spp”. World Journal of Experimental Biosciences 4, no. 2 (August 29, 2016): 147–149. Accessed November 13, 2025. https://journals.uniscipub.com/Wjebs/article/view/97.