Al-Bader, S., L. Ismael, and A. Ahmood. “Fungal Contamination of Airconditioner Units in Five Hospitals of Erbil Province- Kurdistan Region /Iraq”. Science Journal of University of Zakho, Vol. 6, no. 4, Dec. 2018, pp. 146-9, doi:10.25271/sjuoz.2018.6.4.545.