pH Indicator from Kamias (Averrhoa bilimbi L.) Flower Extract. WVSU Research Journal, [S. l.], v. 4, n. 1, p. 30–40, 2015. DOI: 10.59460/wvsurjvol4iss1pp30-40. Disponível em: https://journal.wvsu.edu.ph/index.php/journals/article/view/41.. Acesso em: 15 feb. 2025.