Mai, T. L., Hoang, T. L. T. and Nguyen, T. M. A. (2022) “ISOLATION AND MASS PRODUCTION OF BACILLUS SUBTILIS VAR NATTO”, Hong Duc University Journal of Science, (62), pp. 102-109. Available at: https://hdujs.edu.vn/index.php/hdujs/article/view/12 (Accessed: 17April2026).