Doloking, H., Mukhriani, Rima Amalia, and Andri Anugrah Pratama. “Antioxidant Activity Study of Zingiber Zerumbet Rhizome Extract and Fraction”. Ad-Dawaa’ Journal of Pharmaceutical Sciences, Vol. 5, no. 2, Dec. 2022, pp. 120-9, doi:10.24252/djps.v5i2.37351.