Chagas, J. O., S. Côrrea, I. C. S. Melo, F. A. Lobo, and A. M. de Almeida. “Optimization of a Homogeneous Ternary Solvent System for the Quantification of Lead in Crystal Sugar Samples”. Eclética Química, vol. 42, no. 1, Dec. 2017, pp. 65-70, doi:10.26850/1678-4618eqj.v42.1.2017.p65-70.