Natural dyes: pigments in Chemistry teaching. Research, Society and Development, [S. l.], v. 10, n. 12, p. e154101220315, 2021. DOI: 10.33448/rsd-v10i12.20315. Disponível em: https://www.rsdjournal.org/rsd/article/view/20315. Acesso em: 5 dec. 2025.