Antibacterial Activity of Edible Film with the Addition of Betel Leaf Extract (Piper betle) againts Streptococcus mutans. JPK : Jurnal Proteksi Kesehatan [Internet]. 2022 Jul. 4 [cited 2026 Jan. 18];11(1):12-6. Available from: https://jurnal.pkr.ac.id/JPK/article/view/465