Shetty, Varsha G. “PRODUCTION AND OPTIMIZATION OF CITRIC ACID BY ASPERGILLUS NIGER USING MOLASSES AND CORNCOB”. International Journal of Pharmacy and Pharmaceutical Sciences, vol. 7, no. 5, May 2015, pp. 152-7, https://www.journals.innovareacademics.in/index.php/ijpps/article/view/5327.