Sa’adah, N., M. . Soendoro, I. . Wahyuningsih, and T. . Mashudi. “Salivary Potential of Hidrogen (pH) Before and After Gargling With Yogurt”. Judika (Jurnal Nusantara Medika), vol. 4, no. 1, Aug. 2020, pp. 42-46, doi:10.29407/judika.v4i1.14191.