“Innovations in Sludge Treatment: An Analysis of the System Designed for the Guaranda Municipal Water and Sewage Company”. Revista Repique 6, no. 1 (February 10, 2024): 15–50. Accessed November 8, 2026. http://revistasdigitales.utelvt.edu.ec/revista/index.php/repique/article/view/248.