“Role of Metal Ions, Surfactants and Solvents on Enzymatic Activity of Partial Purified Glucoamylase from Aspergillus Niger ER05”. Journal of Basic & Applied Sciences 14 (January 5, 2018): 141–146. Accessed May 25, 2026. https://setpublisher.com/index.php/jbas/article/view/1794.