Ardinia, Dias and Mulatasih, Endah Ratnasari  (2020) Streptococcus Mutans Antibacterial Study: Mouthwash Preparations Formulation Using Cinnamon and Betel Leaf Essential Oils (Cinnamomum burmannii) (Piper betle L).  Diploma thesis, Poltekkes Tanjungkarang.