[1]
A. Al-Mahin, S. M. Hasan, M. H. Khan, and R. Begum, “Citric Acid Production by <i>Aspergillus niger</i> through Solid-State Fermentation on Sugarcane Bagasse”, Bangla. J. Microbiol., vol. 25, no. 1, pp. 9–12, Apr. 2010.