“A Study of Effect of Different Agricultural Conditions on Production of Enzyme Mannanase from Fungal Isolate Lentinula Edodes”. College of Basic Education Research Journal 21, no. 3 (September 1, 2025): 547–564. Accessed September 7, 2026. https://berj.uomosul.edu.iq/index.php/berj/article/view/53542.