Rudiyansyah, F. Edwindar, and P. Ardiningsih. “Secondary Metabolites and Antioxidant Activity of Methanol Extract and Fractions from the Root of Gitaan (Willughbeia Coreacea Wall)”. Al-Kimia, Vol. 11, no. 2, Dec. 2023, https://journal3.uin-alauddin.ac.id/index.php/al-kimia/article/view/41120.