FERNANDES, R. B. A., I. A. de Carvalho Junior, E. S. Ribeiro Junior, and E. de S. Mendonça. “Comparison of Different Methods for the Determination of Total Organic Carbon and Humic Substances in Brazilian Soils”. Revista Ceres, vol. 62, no. 5, Oct. 2015, https://ojs.ceres.ufv.br/ceres/article/view/1839.