Quiñones Huatangari, Lenin, Manuel Emilio Milla Pino, Oscar Andrés Gamarra Torres, Rolando Salas López, and José Federico Bazán Correa. “Use of Streeter-Phelps Model to Estimate the Dissolved Oxygen of the Utcubamba River”. Ecuadorian Science Journal 4, no. 2 (September 30, 2020): 12-16. Accessed October 24, 2021. https://journals.gdeon.org/index.php/esj/article/view/59.