Kristanti W, Narto N, Muryoto M. Filter Resin Kation Pelunak Air Sadah Sumur Gali. Sanitasi [Internet]. 2018 Feb. 16 [cited 2024 Nov. 22];9(3):134-9. Available from: https://e-journal.poltekkesjogja.ac.id/index.php/Sanitasi/article/view/764