IBÁÑEZ, S.; SUÑÉ, J. Determination of pH: II. Concrete application to semi-solid, cosmetic and pharmaceutical products. Ars Pharmaceutica (Internet), [S. l.], v. 9, n. 5-6, p. 215–226, 1968. Disponível em: https://revistaseug.ugr.es/index.php/ars/article/view/7775. Acesso em: 19 may. 2024.