Lihayati, R. ., Muldarisnur, M., & Marzuki, M. (2022). Determination of Geothermal Fluid Characteristics in Pawan and Pendalian IV Koto Villages, Rokan Hulu Regency, Riau Province Using Geochemical Methods. Jurnal Penelitian Pendidikan IPA, 8(2), 969–974. https://doi.org/10.29303/jppipa.v8i2.1491