G.  Reetika, Kumar, U. S., and Asmita, P., ?Antibacterial properties of linolenic sophorolipid and its chemically esterified methyl ester form?, Research Journal of Biotechnology, vol. 7, no. 3, pp. 40-45, 2012.

R.  Gupta and Prabhune, A., ?Structural determination and chemical esterification of the sophorolipids produced by Candida bombicola grown on glucose and alpha-linolenic acid?, Biotechnology Letters, vol. 34, no. 4, pp. 701-707, 2012.