I. S. Rojas-Rodríguez, M. A. Coronado-García, S. R. Rossetti-López, and F. A. Beltrán-Morales, “Pollution by nitrates and phosphates from agricultural activity in the low basin of the Mayo river in the state of Sonora, Mexico”, terra, vol. 38, no. 2, pp. 247–256, Apr. 2020.