Natural Products and teaching in Science: Amazon Tuber as alternative for Acid-Base indicator . Research, Society and Development, [S. l.], v. 11, n. 13, p. e178111335106, 2022. DOI: 10.33448/rsd-v11i13.35106. Disponível em: https://www.rsdjournal.org/rsd/article/view/35106. Acesso em: 14 dec. 2025.