O. M., A., Mahrous, H., A. F., E. baz, & H. A, H. (2014). Citric Acid Optimization by Candida tropicalis under Submerged Fermentation Conditions Using a Plackett-Burman Design. Journal of Life Sciences Research, 1(3), 70–75. Retrieved from http://asianonlinejournals.com/index.php/Lifsc/article/view/607