Rahayuningsih, C.K. and Lestari, I. 2018. THE ADDITION OF SIWALAN BORASSUS FLABELLIFER WATER AGAINTS TOTAL HARDNESS LEVEL IN WELL WATER. Jurnal Kesehatan Prima. 11, 2 (Apr. 2018), 104–110. DOI:https://doi.org/10.32807/jkp.v11i2.3.