Perbandingan Efek Penambahan Tembaga (Cu) Dan Silikon (Si) Pada Anoda Korban Paduan Al-5Zn Bertegangan Rendah (Low Voltage) = The Effect of Copper and Silicon Addition Ratio in Al-5Zn for Low-Voltage Sacarificial Anode - Inez Togina Yuniaty, author (Fakultas Teknik Universitas Indonesia, 2016)