ORTIZ , L. E., R. RESTREPO, C. A. ARENAS, and O. BOHADA. 1995. “Implementation of an Alternative Skimming System and Improvement of the Final Effluent Quality in API Separators”. CT&F - Ciencia, Tecnología Y Futuro 1 (1):45-53. https://doi.org/10.29047/01225383.606.