Al-Sa’ady, Ali J. R. “Determination of Optimum Conditions for Xylanase Production by Aspergillus Niger Using Solid State Fermentation”. Iraqi Journal of Science 57, no. 3C (February 10, 2022): 2220–2227. Accessed January 8, 2026. https://www.ijs.uobaghdad.edu.iq/index.php/eijs/article/view/6436.