DÍAZ M., M. P., et al. “Production of Biosurfactants (rhamnolipids) by Pseudomonas Aeruginosa Isolated from Colombian Sludges”. CT&F - Ciencia, Tecnología Y Futuro, vol. 1, no. 3, Dec. 1997, pp. 95-108, doi:10.29047/01225383.590.