Evaluation of extracellular enzymatic activity in the Aburrá-Medellín river as a response to variations in water quality and flow regime. reveia [Internet]. 2024 Jul. 9 [cited 2025 Jul. 19];21(42):4220 pp. 1-28. Available from: https://eiaupgrade.metarevistas.org/index.php/reveia/article/view/1753