Karolina C, Purwaningsih D, aisiyah siti. Formulation and Antibacterial Activity Test Of Green Tea Leave (Camellia sinensis L.) Ethanol Extract Serum with Variation Concentrations of Xanthan Gum Against Propionibacterium acnes ATCC 11827. Journal of Pharmaceutical Researchers [Internet]. 31Jul.2023 [cited 11May2024];1(1):27-1. Available from: http://ejurnal.setiabudi.ac.id/ojs/index.php/pharmaceutical-researcher/article/view/2135