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Oktaviani, Rahma (2023) Analisis Perawatan Grinding Ball guna Meminimalisasi Kerugian Akibat Recycle Produksi Semen (Studi Kasus: pada PT. Semen Indonesia (Persero) Tbk di Tuban). (Analysis of Grinding Ball Maintenance to Minimize Losses Due to Recycling of Cement Production (Case Study: at PT. Semen Indonesia (Persero) Tbk in Tuban)). Undergraduate thesis, Universitas 17 Agustus 1945 Surabaya.