[1]
“Colorantes naturales / Olga Lock Sing de Ugaz. Lima: PUCP. Fondo Editorial, 1997. 274 p”., Rev. Quim., vol. 12, no. 1, pp. 150–151, Oct. 1998, Accessed: Sep. 19, 2026. Available: https://revistas.pucp.edu.pe/index.php/quimica/article/view/7562