PENENTUAN KADAR FLAVONOID TOTAL EKSTRAK AIR BUNGA ROSELLA (Hibiscus sabdariffa L) SECARA SPEKTOFOTOMETRI UV-Vis. Journal of Pharmaceutical Science and Herbal Technology. 2018;3(1):9-15. Accessed October 15, 2026. https://ojs.institutnh.ac.id/index.php/jpsht/article/view/272