Kristanti, W., Narto, N. and Muryoto, M. 2018. Filter Resin Kation Pelunak Air Sadah Sumur Gali. Sanitasi: Jurnal Kesehatan Lingkungan. 9, 3 (Feb. 2018), 134–139. DOI:https://doi.org/10.29238/sanitasi.v9i3.764.