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Bisri, Maulana Rizal (2023) Analisis Ketersediaan dan Kebutuhan Air Bersih di Desa Purut Kecamatan Lumbanag Kabupaten Probolinggo. (Analysis of Clean Water Availability and Needs in the Village Purut District Lumbang, Probolinggo Regency). Undergraduate thesis, Universitas 17 Agustus 1945 Surabaya.