R. Philip, N. Kannan, T. R. S. S. D. V. B. “Isolation and Characterization of Thermostable Protease Producing Bacteria from Tannery Industry Effluent”. Recent Research in Science and Technology, vol. 1, no. 2, Oct. 2009, https://updatepublishing.com/journal/index.php/rrst/article/view/279.