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Nuraeni N, Nurafni N, Rismawati R. Efektifitas Cangkang Telur Ayam Dan Telur Bebek Dalam Menurunkan Kadar Zat Besi (Fe) Dan Kesadahan (Caco3) Pada Air Sumur Di Kelurahan Talise: The Effectiveness Of Chicken And Duck Eggshells In Reducing Iron (Fe) And Hardness (Caco₃) Levels In Well Water In Talise Subdistrict. Jkki. 2025;1(2):91-98. Accessed February 10, 2026. https://journal.alpropublication.com/index.php/jkki/article/view/47