Muñoz Paz, V., Longa Cuayla, V., Carreño Arispe, A. and Aguilar Franco, J. 2020. Design, evaluation and validation of an effluent treatment system for the leather tanning process: case Pieles del Sur E.I.R.L. Enfoque UTE. 11, 2 (Apr. 2020), pp. 85-94. DOI:https://doi.org/10.29019/enfoque.v11n2.542.