B. P. Rocha, R. A. dos Santos, I. T. de S. Nola, F. A. Crispim, and A. L. Christoforo, “Português: Models for estimating the optimum moisture and maximum dry density for fine soils”, REEC, vol. 15, no. 1, pp. 183–193, May 2019, doi: 10.5216/reec.v15i1.50204.