“Natural Mouthwash of Sarang Banua Leaves (Clerodendrum Fragrans Vent Willd) Extractas a Healthy Solution During the Covid-19 Pandemic”. Jurnal Pendidikan Kimia, vol. 13, no. 3, Dec. 2021, pp. 202-11, https://doi.org/10.24114/jpkim.v13i3.29077.