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Setyaning, Larashati B’tari, Eko Riyanto, and Mohammad Irfansyah. “ANALISIS PENINGKATAN KUALITAS AIR SUMUR GALI METODE FILTRASI SEDERHANA DENGAN SABUT KELAPA SESUAI SYARAT AIR BERSIH”. Surya Beton : Jurnal Ilmu Teknik Sipil 5, no. 2 (October 26, 2021): 21-30. Accessed September 7, 2025. https://ebook.umpwr.ac.id/suryabeton/article/view/1310.