Ginting, O., & Rahmah, P. (2022). Evaluation of Anti-acne Gel Preparations Combination of Aloe Vera Leaf Extract (Aloe vera (L) Brum F.) And Betel Leaf Extract (Piper betle L.). Journal of Pharmaceutical And Sciences, 5(1), 12-20. https://doi.org/10.36490/journal-jps.com.v5i1.73