Chaparro G., Amanda, Jhon García F., Yaneth Cardona R., Jhon Bustamante C., and Manuel Peláez P. 2016. “Development and Validation of Environmental Friendly Method for Determination of Heavy Metals in Pastures”. Revista De Ciencias Agrícolas 33 (2), 3-15. https://doi.org/10.22267/rcia.163302.48.