MOTTURI, H.; SLAWUTA, S.; SALKUNEN, S.; RAJALA, P. Plant pigments as pH indicators in cooking. LUMAT: International Journal on Math, Science and Technology Education, [S. l.], v. 1, n. 2, p. 209–218, 2013. DOI: 10.31129/lumat.v1i2.1116. Disponível em: https://journals.helsinki.fi/lumat/article/view/1116. Acesso em: 29 apr. 2024.