“Biological Layer in Trickling Filters at Different Organic Loads in the Andean Area”. Aporte Santiaguino 17, no. 1 (July 20, 2024): Pág. 47–58. Accessed June 10, 2026. https://revistas.unasam.edu.pe/index.php/Aporte_Santiaguino/article/view/1133.