Estrada Alvarez, Julián, Germán Gómez Londoño, and Alberto Jaramillo Jiménez. 2008. “Effect of the Constant Fl Ow Plastic Biodigestor in the Treatment of Waste Waters”. Revista Veterinaria Y Zootecnia (On Line) 2 (2):10-20. https://revistasojs.ucaldas.edu.co/index.php/vetzootec/article/view/5719.