Lionita, Ni Kadek Vinka, Ni Putu Wintariani, and Dewi Puspita Apsari. “Antiradical Activity of Gonda Plant Extract (Sphenoclea Zeylanica Gaertn) Cream Using DPPH Method (1,1-Diphenyl-2-Picrylhydrazyl)”. Jurnal Ilmiah Medicamento 9, no. 1 (March 30, 2023): 52–60. Accessed November 22, 2024. https://e-journal.unmas.ac.id/index.php/Medicamento/article/view/4575.