J. Al-Buliilal, “Ferqnency of some Legionella species isolated from cooling towers, during two years”, IHJPAS, vol. 21, no. 3, pp. 56–69, Sep. 2017, Accessed: Mar. 29, 2025. [Online]. Available: https://jih.uobaghdad.edu.iq/index.php/j/article/view/1406