Pérez Rodríguez, C., J. M. Coto Campos, V. Salgado Silva, J. Herrera Núñez, J. F. Fernández Araya, and C. Benavides Benavides. “Wastewater Treatment in a Small Domestic-Productive Unit, Using Alternative Technologies”. Uniciencia, Vol. 27, no. 1, Jan. 2013, pp. 319-31, https://www.revistas.una.ac.cr/index.php/uniciencia/article/view/4957.