Antioxidant Activity Assay of Black Turmeric (C. Caesia) Water and Ethanol Extracted Using DPPH. JURNAL PROTEKSI KESEHATAN, [S. l.], v. 12, n. 2, p. 163–168, 2023. DOI: 10.36929/jpk.v12i2.790. Disponível em: https://jurnal.pkr.ac.id/index.php/JPK/article/view/790. Acesso em: 16 jan. 2026.