V. R. Fione, J. d’Arc Z. . Adam, and N. M. A. S. . Lestari, “The Effectiveness of Gargling Decoction of Green Betel Leaf (Piper Betle L) and Guava Leaf (Psidium Guajava) Against Plaque Index”, Eduvest, vol. 4, no. 7, pp. 6371–6378, Aug. 2024.