Maduahasova, A., K. Baltin, B. Bizhanova, B. Khassenov, and S. Aktayeva. “Use of Bacillus Strains With Protease, Keratinase and Collagenase Activity in the Processing of Agricultural Products”. Eurasian Journal of Applied Biotechnology, no. 4 (December 31, 2025): 118–129. Accessed May 16, 2026. https://biotechlink.org/index.php/journal/article/view/1129.