The Effect of Nano Extract Formulation on Antioxidant Activity of 70% Ethanolic Extract of Purple Sweet Potato’s Leaves (Ipomoea Batatas L.) Antin-3 Variety: Pengaruh Formulasi Nano Ekstrak Terhadap Aktivitas Antioksidan Ekstrak Etanol 70% Daun Ubi Jalar Ungu (Ipomoea Batatas L.) Varieas Antin-3. Pharmasci 2022, 7 (1), 43-47. https://doi.org/10.53342/pharmasci.v7i1.270.