“Phytochemical Assay and Antioxidant Activity Against DPPH of Ethanol Extract from Kenaf Leaf (Hibiscus Cannabinus L.)”. Journal of Tropical Pharmacy and Chemistry 4, no. 5 (June 30, 2019): 203–208. Accessed April 19, 2025. https://jtpc.ff.unmul.ac.id/index.php/jtpc/article/view/273.