Reyes, A., Ambita, I. D., Batalon, J. L., Aba, B. L., Cortes, A., Macabecha, C. G., and Montecillo, A. 2018. “Isolation and characterization of keratinolytic bacteria from soil samples of poultry waste dumping sites”. International Journal of Agricultural Technology 14 (7):1787-1800. https://li04.tci-thaijo.org/index.php/IJAT/article/view/9078.