Rosari, V. ., Fitriani, N. ., & Prasetya, F. . (2021). Optimasi Basis Gel dan Evaluasi Sediaan Gel Anti Jerawat Ekstrak Daun Sirih Hitam (Piper betle L. Var Nigra): Gel Base Optimization and Evaluation of Anti-Acne Gel Black Betel Leaf Extract (Piper betle L. Var Nigra). Proceeding of Mulawarman Pharmaceuticals Conferences, 13(1), 204–212. https://doi.org/10.25026/mpc.v13i1.468