R. R. . Wicaksono and E. . Sulistiono, “Combination Extract of Lidah Mertua (Sansevieria verticilata) And Sereh (Cymbopogon nardus L.) Indifferent Drying as Anti-Microbial ”, Nusantara Sci. Tech. Proc., pp. 1–4, Apr. 2021, doi: 10.11594/nstp.2021.0901.