Sitanaya, Rini, et al. “Gargling With Boiled Water from Red Ginger (Z. Officinale Var Rubrum) on Changes in the Potential of Hydrogen (pH) of Oral Cavity Saliva”. Media Kesehatan Gigi : Politeknik Kesehatan Makassar, vol. 22, no. 2, Dec. 2023, pp. 26-32, https://ojs3.poltekkes-mks.ac.id/index.php/medgigi/article/view/374.