F. Huaranga Moreno, E. Méndez García, V. Quilcat León, and F. Huaranga Arévalo, “Pollution by heavy metals in the Moche River Basin, 1980 - 2010, La Libertad - Peru”, Sci. agropecu, vol. 3, no. 3, pp. 235–247, Sep. 2012, doi: 10.17268/sci.agropecu.2012.03.05.