“PENETAPAN KADAR POLIFENOL DARI EKSTRAK DAN NANOPARTIKEL EKSTRAK DAUN AFRIKA (Vernonia amygdalina.Del.) MENGGUNAKAN METODE SPEKTROFOTOMETRI UV-Vis”, Medic Nutricia, vol. 21, no. 2, pp. 641–650, Oct. 2025, Accessed: Oct. 02, 2026. [Online]. Available: https://cibjournal.com/index.php/medicnutricia/article/view/720