Effect of Metal Ions on the Activity of Cellulase Produced by Aspergillus niger Using Arachis hypogaea Shells. Nigerian Journal of Biochemistry and Molecular Biology, Nigeria, v. 37, n. 1, p. 58–63, 2022. Disponível em: https://www.nsbmb.org.ng/journals/index.php/njbmb/article/view/14. Acesso em: 7 aug. 2025.