Yendri Junaidi, Ambar Partiwiningrum, Yuny Erwanto, Jamhari, Lies Mira Yusiati, Takashi Hayakawa, Tomoyuki Nakagawa, Nanung Agus Fitriyanto*. “PURIFICATION BY ION EXCHANGE CHROMATOGRAPHY AND ENZYME CHARACTERIZATION OF POTENTIAL DE-HAIRING ALKALINE PROTEASE FROM BACILLUS CEREUS LS2B”. Pakistan Journal of Biotechnology, vol. 15, no. 2, June 2018, pp. 413-21, https://pjbt.org/index.php/pjbt/article/view/411.