Mnif, Ines, Semia Ellouze-Chaabouni, and Dhouha Ghribi. 2012. “RESPONSE SURFACE METHODOLOGICAL APPROACH TO OPTIMIZE THE NUTRITIONAL PARAMETERS FOR ENHANCED PRODUCTION OF LIPOPEPTIDE BIOSURFACTANT IN SUBMERGED CULTURE BY B. SUBTILIS SPB1”. Journal of Advanced Scientific Research 3 (01), 87-94. https://sciensage.info/index.php/JASR/article/view/84.