Ultrasonic Extraction of Nothaphoebe Coriacea Bark and Its Antioxidant Evaluation. ALKIMIA : Jurnal Ilmu Kimia dan Terapan, [S. l.], v. 4, n. 2, p. 52–57, 2021. DOI: 10.19109/alkimia.v4i2.7333. Disponível em: https://jurnal.radenfatah.ac.id/index.php/alkimia/article/view/7333.. Acesso em: 20 aug. 2025.