Zouari, R., Ellouze-Chaabouni, S., & Ghribi, D. (2015). USE OF BUTTER MILK AND POULTRY-TRANSFORMING WASTES FOR ENHANCED PRODUCTION OF Bacillus subtilis SPB1 BIOSURFACTANT IN SUBMERGED FERMENTATION. Journal of Microbiology, Biotechnology and Food Sciences, 4(5), 462–466. https://doi.org/10.15414/jmbfs.2015.4.5.462-466