K. Refika, N. Nurjanah, T. Widyastuti, and D. Ridwan Chaerudin, “EFFECT OF GARGLING WITH RED GINGER WATER STEW (Zingiber Officinale Var. Rubrum) ON PHP INDEX DECLINE IN PONDOK SENYUM INDONESIA”, JTGM, vol. 1, no. 1, pp. 1-8, Dec. 2021.