Florenly, Florenly, et al. “Nano-Green Betel Leaf Extracts (Piper Betle L.) Inhibits the Growth of Streptococcus Mutans and Staphylococcus Aureus”. E-GiGi, vol. 10, no. 2, June 2022, pp. 154-61, doi:10.35790/eg.v10i2.39014.