A.H. Alhasan, D., H. A. Husein, and A. Q. Dawood. “In Vitro Antimicrobial Activity of The Filtrate Crude Extract Produced by Aspergillus Niger”. University of Thi-Qar Journal of Science, Vol. 7, no. 1, May 2019, pp. 66-71, https://jsci.utq.edu.iq/index.php/main/article/view/253.