Napoleon’s hat (thevetia peruviana (pers.) k. schum): new natural indicator acid-base. Research, Society and Development, [S. l.], v. 10, n. 12, p. e101101220263, 2021. DOI: 10.33448/rsd-v10i12.20263. Disponível em: https://www.rsdjournal.org/rsd/article/view/20263. Acesso em: 5 dec. 2025.