NADEEM, A. N.; JAFRI, S. A.; BAIG, S.; IRFAN, M.; SYED, Q. Short Communication Optimization of Substrate Concentration for Enhanced Citric Acid Production by Aspergillus niger M-101: Short Communication: Citric Acid Production by A. niger. Biological Sciences - PJSIR, [S. l.], v. 52, n. 5, p. 275–277, 2009. Disponível em: https://v2.pjsir.org/index.php/biological-sciences/article/view/564. Acesso em: 7 may. 2024.