GURNING, Kasta. Determination antioxidant activities methanol extracts of bangun-bangun (Coleus amboinicus L.) Leaves with DPPH method. Jurnal Pendidikan Kimia, [S. l.], v. 12, n. 2, p. 62–69, 2020. DOI: 10.24114/jpkim.v12i2.19397. Disponível em: https://jurnal.unimed.ac.id/2012/index.php/jpk/article/view/19397. Acesso em: 22 may. 2025.