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Wirawan, Andika Puji (2022) Analisis Waktu Proses Pencampuran Bahan Bata Tahan Api pada PT. Benteng Api Technic Gresik (Time Analysis of Fire Brick Material Mixing Process at PT. Benteng Api Technic Gresik). Undergraduate thesis, Universitas 17 Agustus 1945 Surabaya.