Kodama, Takeko, Keiji Endo, Katsutoshi Ara, Katsuya Ozaki, & Junichi Sekiguchi. " ZYMOGRAPHY OF EXTRACELLULAR PROTEASES IN Bacillus subtilis." International Journal of Biosciences and Biotechnology [Online], 1.2 (2013): n. pag. Web. 9 May. 2026