Jia, H., Y. Ma, C. Zhong, Y. Xie, H. Zhou, and P. Wei. “Optimization of Phenoxazinone Synthase Production by Response Surface Methodology and Its Application in Congo Red Decolourization”. Electronic Journal of Biotechnology, vol. 16, no. 5, Sept. 2013, https://www.ejbiotechnology.info/index.php/ejbiotechnology/article/view/v16n5-11.