Antibacterial Activity of Edible Film with the Addition of Betel Leaf Extract (Piper betle) againts Streptococcus mutans. JURNAL PROTEKSI KESEHATAN [Internet]. 4 Juli 2022 [dikutip 18 Januari 2026];11(1):12-6. Tersedia pada: https://jurnal.pkr.ac.id/JPK/article/view/465