M. J. Roncada, D. Wilson, and L. Suguimoto, “ Concentration of ascorbic acid in juices of several Brazilian fruit and its relationship with cost and daily allowances of vitamin C ”, Rev. saúde pública, vol. 11, no. 1, pp. 39–46, Mar. 1977, doi: 10.1590/S0034-89101977000100004.