“Determination of Total Phenolic Content and Antioxidant Activity of Ethanol Extract of Green Tea Leaves (Camellia Sinensis L.) Based on IC₅₀ Values Using the DPPH Method”. JURNAL FARMASIMED (JFM) 9, no. 1 (October 30, 2026): 706–715. Accessed November 1, 2026. https://ejournal.medistra.ac.id/index.php/JFM/article/view/4060.