Qualitative Test of Acid Content in Cosmetics and Food Ingredients Using FeCL3. Jurnal Teknologi Pangan dan Industri Perkebunan (LIPIDA), [S. l.], v. 3, n. 2, p. 28–32, 2023. DOI: 10.58466/lipida.v3i2.1464. Disponível em: https://jurnal.politap.ac.id/index.php/lipida/article/view/1464. Acesso em: 18 dec. 2025.