JM, A. K., L. A, S. R. V, and S. B. “Isolation and Characterization of Feather Degrading Bacteria from Poultry Waste”. Journal of Research in Biology, Vol. 2, no. 7, Nov. 2012, pp. 676-82, https://ojs.jresearchbiology.com/index.php/jrb/article/view/266.