ANYANWU, V. E.; OKERENTUGBA, P. O. Citric Acid Production by Wild and UV – Treated Strains of Aspergillus niger on Two Different Mineral Salt Media. International Journal of Applied Sciences and Biotechnology, [S. l.], v. 1, n. 3, p. 145–153, 2013. DOI: 10.3126/ijasbt.v1i3.8358. Disponível em: https://www.nepjol.info/index.php/IJASBT/article/view/8358. Acesso em: 20 apr. 2024.