Tedjasulaksana, R., M. M. Nahak, and R. Larasati. “Effectivity of Betel Leaf (Piper Betle L.) Gel Extract in Shortening Bleeding Time After Deciduous Tooth Extraction”. Bali Medical Journal, vol. 6, no. 1, Jan. 2017, pp. 31-33, doi:10.15562/bmj.v6i1.374.