Udayasree, R., and V. V. Lakshmi. “OPTIMIZATION OF NUTRITIONAL AND PHYSICOCHEMICAL PARAMETERS FOR ENHANCED BIOSURFACTANT PRODUCTION BY BACILLUS SUBTILIS ISOLATES”. International Journal of Aquatic Research and Environmental Studies, vol. 6, no. S1, Mar. 2026, pp. 1438-47, https://doi.org/10.70102/02q59y25.