Chandra, M. A., Kuncahyo, I., & Indrayati, A. (2022). Optimization of Quercetin Gel Formulation using Factorial Design Method and Antibacterial Test against Propionibacterium acnes. Borneo Journal of Pharmacy, 5(2), 126–135. https://doi.org/10.33084/bjop.v5i2.3321