Ramayta Azizah et al. 2026. Antibacterial and Biofilm Formation Inhibitory Activities of Kratom (Mitragyna speciosa Korth.) Leaf Extract Against Cutibacterium acnes. Annales Bogorienses. 30, 1 (Sep. 2026), 32–41. DOI:https://doi.org/10.14203/ann.bogor.2022.v30.n1.32-41.