Koutb, M., F. M. Morsy, M. M. K. Bagy, and E. A. Hassan. “Optimization of Extracellular Keratinase Production by Aspergillus Terreus Isolated from Chicken’s Litter”. Advances in BioScience, vol. 3, no. 3, July 2012, pp. 210-6, https://journals.sospublication.co.in/ab/article/view/85.