Ali, S., ul-Haq, I., Qadeer, M., & Iqbal, J. (2002). Production of citric acid by Aspergillus niger using cane molasses in a stirred fermentor. Electronic Journal of Biotechnology, 5(3), 0–0. Retrieved from https://www.ejbiotechnology.info/index.php/ejbiotechnology/article/view/v5n3-3