2021. Physical Evaluation of Anti Acne Mask With Ethanol Extract of Purple Sweet Potato Leaf (Ipomoea batatas (L.) Antin-3 Varieties: Evaluasi Fisik Masker Anti Jerawat Dengan Ekstrak Etanol Daun Ubi Jalar Ungu (Ipomoea batatas (L.) Varietas Antin-3 . Journal Pharmasci (Journal of Pharmacy and Science). 6, 2 (Jul. 2021), 69–73. DOI:https://doi.org/10.53342/pharmasci.v6i2.219.